20814177560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1\times {\mathrm{1151}}^1$

素因数の和:1809

約数の個数: 128

約数和(自身を含む): 51926261760

約数和(自身を除く): 31112084200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 563, 584, 730, 803, 1126, 1151, 1460, 1606, 2252, 2302, 2815, 2920, 3212, 4015, 4504, 4604, 5630, 5755, 6193, 6424, 8030, 9208, 11260, 11510, 12386, 12661, 16060, 22520, 23020, 24772, 25322, 30965, 32120, 41099, 46040, 49544, 50644, 61930, 63305, 82198, 84023, 101288, 123860, 126610, 164396, 168046, 205495, 247720, 253220, 328792, 336092, 410990, 420115, 452089, 506440, 648013, 672184, 821980, 840230, 904178, 924253, 1296026, 1643960, 1680460, 1808356, 1848506, 2260445, 2592052, 3240065, 3360920, 3616712, 3697012, 4520890, 4621265, 5184104, 6480130, 7128143, 7394024, 9041780, 9242530, 12960260, 14256286, 18083560, 18485060, 25920520, 28512572, 35640715, 36970120, 47304949, 57025144, 71281430, 94609898, 142562860, 189219796, 236524745, 285125720, 378439592, 473049490, 520354439, 946098980, 1040708878, 1892197960, 2081417756, 2601772195, 4162835512, 5203544390, 10407088780, 20814177560]

約数ペア:

[(1, 20814177560), (2, 10407088780), (4, 5203544390), (5, 4162835512), (8, 2601772195), (10, 2081417756), (11, 1892197960), (20, 1040708878), (22, 946098980), (40, 520354439), (44, 473049490), (55, 378439592), (73, 285125720), (88, 236524745), (110, 189219796), (146, 142562860), (220, 94609898), (292, 71281430), (365, 57025144), (440, 47304949), (563, 36970120), (584, 35640715), (730, 28512572), (803, 25920520), (1126, 18485060), (1151, 18083560), (1460, 14256286), (1606, 12960260), (2252, 9242530), (2302, 9041780), (2815, 7394024), (2920, 7128143), (3212, 6480130), (4015, 5184104), (4504, 4621265), (4604, 4520890), (5630, 3697012), (5755, 3616712), (6193, 3360920), (6424, 3240065), (8030, 2592052), (9208, 2260445), (11260, 1848506), (11510, 1808356), (12386, 1680460), (12661, 1643960), (16060, 1296026), (22520, 924253), (23020, 904178), (24772, 840230), (25322, 821980), (30965, 672184), (32120, 648013), (41099, 506440), (46040, 452089), (49544, 420115), (50644, 410990), (61930, 336092), (63305, 328792), (82198, 253220), (84023, 247720), (101288, 205495), (123860, 168046), (126610, 164396)]