81588780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:345

約数の個数: 288

約数和(自身を含む): 323616384

約数和(自身を除く): 242027604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 68, 70, 78, 84, 85, 90, 91, 102, 105, 117, 119, 126, 130, 140, 153, 156, 170, 180, 182, 195, 204, 210, 221, 234, 238, 252, 255, 260, 273, 293, 306, 315, 340, 357, 364, 390, 420, 442, 455, 468, 476, 510, 546, 585, 586, 595, 612, 630, 663, 714, 765, 780, 819, 879, 884, 910, 1020, 1071, 1092, 1105, 1170, 1172, 1190, 1260, 1326, 1365, 1428, 1465, 1530, 1547, 1638, 1758, 1785, 1820, 1989, 2051, 2142, 2210, 2340, 2380, 2637, 2652, 2730, 2930, 3060, 3094, 3276, 3315, 3516, 3570, 3809, 3978, 4095, 4102, 4284, 4395, 4420, 4641, 4981, 5274, 5355, 5460, 5860, 6153, 6188, 6630, 7140, 7618, 7735, 7956, 8190, 8204, 8790, 9282, 9945, 9962, 10255, 10548, 10710, 11427, 12306, 13185, 13260, 13923, 14943, 15236, 15470, 16380, 17580, 18459, 18564, 19045, 19890, 19924, 20510, 21420, 22854, 23205, 24612, 24905, 26370, 26663, 27846, 29886, 30765, 30940, 34281, 34867, 36918, 38090, 39780, 41020, 44829, 45708, 46410, 49810, 52740, 53326, 55692, 57135, 59772, 61530, 64753, 68562, 69615, 69734, 73836, 74715, 76180, 79989, 89658, 92295, 92820, 99620, 104601, 106652, 114270, 123060, 129506, 133315, 137124, 139230, 139468, 149430, 159978, 171405, 174335, 179316, 184590, 194259, 209202, 224145, 228540, 239967, 259012, 266630, 278460, 298860, 313803, 319956, 323765, 342810, 348670, 369180, 388518, 399945, 418404, 448290, 453271, 479934, 523005, 533260, 582777, 627606, 647530, 685620, 697340, 777036, 799890, 896580, 906542, 959868, 971295, 1046010, 1165554, 1199835, 1255212, 1295060, 1359813, 1569015, 1599780, 1813084, 1942590, 2092020, 2266355, 2331108, 2399670, 2719626, 2913885, 3138030, 3885180, 4079439, 4532710, 4799340, 5439252, 5827770, 6276060, 6799065, 8158878, 9065420, 11655540, 13598130, 16317756, 20397195, 27196260, 40794390, 81588780]

約数ペア:

[(1, 81588780), (2, 40794390), (3, 27196260), (4, 20397195), (5, 16317756), (6, 13598130), (7, 11655540), (9, 9065420), (10, 8158878), (12, 6799065), (13, 6276060), (14, 5827770), (15, 5439252), (17, 4799340), (18, 4532710), (20, 4079439), (21, 3885180), (26, 3138030), (28, 2913885), (30, 2719626), (34, 2399670), (35, 2331108), (36, 2266355), (39, 2092020), (42, 1942590), (45, 1813084), (51, 1599780), (52, 1569015), (60, 1359813), (63, 1295060), (65, 1255212), (68, 1199835), (70, 1165554), (78, 1046010), (84, 971295), (85, 959868), (90, 906542), (91, 896580), (102, 799890), (105, 777036), (117, 697340), (119, 685620), (126, 647530), (130, 627606), (140, 582777), (153, 533260), (156, 523005), (170, 479934), (180, 453271), (182, 448290), (195, 418404), (204, 399945), (210, 388518), (221, 369180), (234, 348670), (238, 342810), (252, 323765), (255, 319956), (260, 313803), (273, 298860), (293, 278460), (306, 266630), (315, 259012), (340, 239967), (357, 228540), (364, 224145), (390, 209202), (420, 194259), (442, 184590), (455, 179316), (468, 174335), (476, 171405), (510, 159978), (546, 149430), (585, 139468), (586, 139230), (595, 137124), (612, 133315), (630, 129506), (663, 123060), (714, 114270), (765, 106652), (780, 104601), (819, 99620), (879, 92820), (884, 92295), (910, 89658), (1020, 79989), (1071, 76180), (1092, 74715), (1105, 73836), (1170, 69734), (1172, 69615), (1190, 68562), (1260, 64753), (1326, 61530), (1365, 59772), (1428, 57135), (1465, 55692), (1530, 53326), (1547, 52740), (1638, 49810), (1758, 46410), (1785, 45708), (1820, 44829), (1989, 41020), (2051, 39780), (2142, 38090), (2210, 36918), (2340, 34867), (2380, 34281), (2637, 30940), (2652, 30765), (2730, 29886), (2930, 27846), (3060, 26663), (3094, 26370), (3276, 24905), (3315, 24612), (3516, 23205), (3570, 22854), (3809, 21420), (3978, 20510), (4095, 19924), (4102, 19890), (4284, 19045), (4395, 18564), (4420, 18459), (4641, 17580), (4981, 16380), (5274, 15470), (5355, 15236), (5460, 14943), (5860, 13923), (6153, 13260), (6188, 13185), (6630, 12306), (7140, 11427), (7618, 10710), (7735, 10548), (7956, 10255), (8190, 9962), (8204, 9945), (8790, 9282)]