81971760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 240

約数和(自身を含む): 287553024

約数和(自身を除く): 205581264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 43, 47, 48, 52, 60, 65, 78, 80, 86, 94, 104, 120, 129, 130, 141, 156, 169, 172, 188, 195, 208, 215, 235, 240, 258, 260, 282, 312, 338, 344, 376, 390, 430, 470, 507, 516, 520, 559, 564, 611, 624, 645, 676, 688, 705, 752, 780, 845, 860, 940, 1014, 1032, 1040, 1118, 1128, 1222, 1290, 1352, 1410, 1560, 1677, 1690, 1720, 1833, 1880, 2021, 2028, 2064, 2236, 2256, 2444, 2535, 2580, 2704, 2795, 2820, 3055, 3120, 3354, 3380, 3440, 3666, 3760, 4042, 4056, 4472, 4888, 5070, 5160, 5590, 5640, 6063, 6110, 6708, 6760, 7267, 7332, 7943, 8084, 8112, 8385, 8944, 9165, 9776, 10105, 10140, 10320, 11180, 11280, 12126, 12220, 13416, 13520, 14534, 14664, 15886, 16168, 16770, 18330, 20210, 20280, 21801, 22360, 23829, 24252, 24440, 26273, 26832, 29068, 29328, 30315, 31772, 32336, 33540, 36335, 36660, 39715, 40420, 40560, 43602, 44720, 47658, 48504, 48880, 52546, 58136, 60630, 63544, 67080, 72670, 73320, 78819, 79430, 80840, 87204, 95316, 97008, 105092, 109005, 116272, 119145, 121260, 127088, 131365, 134160, 145340, 146640, 157638, 158860, 161680, 174408, 190632, 210184, 218010, 238290, 242520, 262730, 290680, 315276, 317720, 341549, 348816, 381264, 394095, 420368, 436020, 476580, 485040, 525460, 581360, 630552, 635440, 683098, 788190, 872040, 953160, 1024647, 1050920, 1261104, 1366196, 1576380, 1707745, 1744080, 1906320, 2049294, 2101840, 2732392, 3152760, 3415490, 4098588, 5123235, 5464784, 6305520, 6830980, 8197176, 10246470, 13661960, 16394352, 20492940, 27323920, 40985880, 81971760]

約数ペア:

[(1, 81971760), (2, 40985880), (3, 27323920), (4, 20492940), (5, 16394352), (6, 13661960), (8, 10246470), (10, 8197176), (12, 6830980), (13, 6305520), (15, 5464784), (16, 5123235), (20, 4098588), (24, 3415490), (26, 3152760), (30, 2732392), (39, 2101840), (40, 2049294), (43, 1906320), (47, 1744080), (48, 1707745), (52, 1576380), (60, 1366196), (65, 1261104), (78, 1050920), (80, 1024647), (86, 953160), (94, 872040), (104, 788190), (120, 683098), (129, 635440), (130, 630552), (141, 581360), (156, 525460), (169, 485040), (172, 476580), (188, 436020), (195, 420368), (208, 394095), (215, 381264), (235, 348816), (240, 341549), (258, 317720), (260, 315276), (282, 290680), (312, 262730), (338, 242520), (344, 238290), (376, 218010), (390, 210184), (430, 190632), (470, 174408), (507, 161680), (516, 158860), (520, 157638), (559, 146640), (564, 145340), (611, 134160), (624, 131365), (645, 127088), (676, 121260), (688, 119145), (705, 116272), (752, 109005), (780, 105092), (845, 97008), (860, 95316), (940, 87204), (1014, 80840), (1032, 79430), (1040, 78819), (1118, 73320), (1128, 72670), (1222, 67080), (1290, 63544), (1352, 60630), (1410, 58136), (1560, 52546), (1677, 48880), (1690, 48504), (1720, 47658), (1833, 44720), (1880, 43602), (2021, 40560), (2028, 40420), (2064, 39715), (2236, 36660), (2256, 36335), (2444, 33540), (2535, 32336), (2580, 31772), (2704, 30315), (2795, 29328), (2820, 29068), (3055, 26832), (3120, 26273), (3354, 24440), (3380, 24252), (3440, 23829), (3666, 22360), (3760, 21801), (4042, 20280), (4056, 20210), (4472, 18330), (4888, 16770), (5070, 16168), (5160, 15886), (5590, 14664), (5640, 14534), (6063, 13520), (6110, 13416), (6708, 12220), (6760, 12126), (7267, 11280), (7332, 11180), (7943, 10320), (8084, 10140), (8112, 10105), (8385, 9776), (8944, 9165)]