205610240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{859}}^1$

素因数の和:908

約数の個数: 144

約数和(自身を含む): 569540160

約数和(自身を除く): 363929920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 170, 176, 187, 220, 256, 272, 320, 340, 352, 374, 440, 544, 640, 680, 704, 748, 859, 880, 935, 1088, 1280, 1360, 1408, 1496, 1718, 1760, 1870, 2176, 2720, 2816, 2992, 3436, 3520, 3740, 4295, 4352, 5440, 5984, 6872, 7040, 7480, 8590, 9449, 10880, 11968, 13744, 14080, 14603, 14960, 17180, 18898, 21760, 23936, 27488, 29206, 29920, 34360, 37796, 47245, 47872, 54976, 58412, 59840, 68720, 73015, 75592, 94490, 109952, 116824, 119680, 137440, 146030, 151184, 160633, 188980, 219904, 233648, 239360, 274880, 292060, 302368, 321266, 377960, 467296, 549760, 584120, 604736, 642532, 755920, 803165, 934592, 1099520, 1168240, 1209472, 1285064, 1511840, 1606330, 1869184, 2336480, 2418944, 2570128, 3023680, 3212660, 3738368, 4672960, 5140256, 6047360, 6425320, 9345920, 10280512, 12094720, 12850640, 18691840, 20561024, 25701280, 41122048, 51402560, 102805120, 205610240]

約数ペア:

[(1, 205610240), (2, 102805120), (4, 51402560), (5, 41122048), (8, 25701280), (10, 20561024), (11, 18691840), (16, 12850640), (17, 12094720), (20, 10280512), (22, 9345920), (32, 6425320), (34, 6047360), (40, 5140256), (44, 4672960), (55, 3738368), (64, 3212660), (68, 3023680), (80, 2570128), (85, 2418944), (88, 2336480), (110, 1869184), (128, 1606330), (136, 1511840), (160, 1285064), (170, 1209472), (176, 1168240), (187, 1099520), (220, 934592), (256, 803165), (272, 755920), (320, 642532), (340, 604736), (352, 584120), (374, 549760), (440, 467296), (544, 377960), (640, 321266), (680, 302368), (704, 292060), (748, 274880), (859, 239360), (880, 233648), (935, 219904), (1088, 188980), (1280, 160633), (1360, 151184), (1408, 146030), (1496, 137440), (1718, 119680), (1760, 116824), (1870, 109952), (2176, 94490), (2720, 75592), (2816, 73015), (2992, 68720), (3436, 59840), (3520, 58412), (3740, 54976), (4295, 47872), (4352, 47245), (5440, 37796), (5984, 34360), (6872, 29920), (7040, 29206), (7480, 27488), (8590, 23936), (9449, 21760), (10880, 18898), (11968, 17180), (13744, 14960), (14080, 14603)]