280245420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1901}}^1$

素因数の和:1942

約数の個数: 240

約数和(自身を含む): 1082587968

約数和(自身を除く): 802342548

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 324, 351, 364, 378, 390, 405, 420, 455, 468, 540, 546, 567, 585, 630, 702, 756, 780, 810, 819, 910, 945, 1053, 1092, 1134, 1170, 1260, 1365, 1404, 1620, 1638, 1755, 1820, 1890, 1901, 2106, 2268, 2340, 2457, 2730, 2835, 3276, 3510, 3780, 3802, 4095, 4212, 4914, 5265, 5460, 5670, 5703, 7020, 7371, 7604, 8190, 9505, 9828, 10530, 11340, 11406, 12285, 13307, 14742, 16380, 17109, 19010, 21060, 22812, 24570, 24713, 26614, 28515, 29484, 34218, 36855, 38020, 39921, 49140, 49426, 51327, 53228, 57030, 66535, 68436, 73710, 74139, 79842, 85545, 98852, 102654, 114060, 119763, 123565, 133070, 147420, 148278, 153981, 159684, 171090, 172991, 199605, 205308, 222417, 239526, 247130, 256635, 266140, 296556, 307962, 342180, 345982, 359289, 370695, 399210, 444834, 479052, 494260, 513270, 518973, 598815, 615924, 667251, 691964, 718578, 741390, 769905, 798420, 864955, 889668, 1026540, 1037946, 1077867, 1112085, 1197630, 1334502, 1437156, 1482780, 1539810, 1556919, 1729910, 1796445, 2001753, 2075892, 2155734, 2224170, 2395260, 2594865, 2669004, 3079620, 3113838, 3336255, 3459820, 3592890, 4003506, 4311468, 4448340, 4670757, 5189730, 5389335, 6227676, 6672510, 7185780, 7784595, 8007012, 9341514, 10008765, 10379460, 10778670, 13345020, 14012271, 15569190, 18683028, 20017530, 21557340, 23353785, 28024542, 31138380, 40035060, 46707570, 56049084, 70061355, 93415140, 140122710, 280245420]

約数ペア:

[(1, 280245420), (2, 140122710), (3, 93415140), (4, 70061355), (5, 56049084), (6, 46707570), (7, 40035060), (9, 31138380), (10, 28024542), (12, 23353785), (13, 21557340), (14, 20017530), (15, 18683028), (18, 15569190), (20, 14012271), (21, 13345020), (26, 10778670), (27, 10379460), (28, 10008765), (30, 9341514), (35, 8007012), (36, 7784595), (39, 7185780), (42, 6672510), (45, 6227676), (52, 5389335), (54, 5189730), (60, 4670757), (63, 4448340), (65, 4311468), (70, 4003506), (78, 3592890), (81, 3459820), (84, 3336255), (90, 3113838), (91, 3079620), (105, 2669004), (108, 2594865), (117, 2395260), (126, 2224170), (130, 2155734), (135, 2075892), (140, 2001753), (156, 1796445), (162, 1729910), (180, 1556919), (182, 1539810), (189, 1482780), (195, 1437156), (210, 1334502), (234, 1197630), (252, 1112085), (260, 1077867), (270, 1037946), (273, 1026540), (315, 889668), (324, 864955), (351, 798420), (364, 769905), (378, 741390), (390, 718578), (405, 691964), (420, 667251), (455, 615924), (468, 598815), (540, 518973), (546, 513270), (567, 494260), (585, 479052), (630, 444834), (702, 399210), (756, 370695), (780, 359289), (810, 345982), (819, 342180), (910, 307962), (945, 296556), (1053, 266140), (1092, 256635), (1134, 247130), (1170, 239526), (1260, 222417), (1365, 205308), (1404, 199605), (1620, 172991), (1638, 171090), (1755, 159684), (1820, 153981), (1890, 148278), (1901, 147420), (2106, 133070), (2268, 123565), (2340, 119763), (2457, 114060), (2730, 102654), (2835, 98852), (3276, 85545), (3510, 79842), (3780, 74139), (3802, 73710), (4095, 68436), (4212, 66535), (4914, 57030), (5265, 53228), (5460, 51327), (5670, 49426), (5703, 49140), (7020, 39921), (7371, 38020), (7604, 36855), (8190, 34218), (9505, 29484), (9828, 28515), (10530, 26614), (11340, 24713), (11406, 24570), (12285, 22812), (13307, 21060), (14742, 19010), (16380, 17109)]