20245843120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:863

約数の個数: 160

約数和(自身を含む): 49160960640

約数和(自身を除く): 28915117520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 71, 80, 106, 109, 142, 212, 218, 265, 284, 355, 424, 436, 530, 545, 568, 617, 710, 848, 872, 1060, 1090, 1136, 1234, 1420, 1744, 2120, 2180, 2468, 2840, 3085, 3763, 4240, 4360, 4936, 5680, 5777, 6170, 7526, 7739, 8720, 9872, 11554, 12340, 15052, 15478, 18815, 23108, 24680, 28885, 30104, 30956, 32701, 37630, 38695, 43807, 46216, 49360, 57770, 60208, 61912, 65402, 67253, 75260, 77390, 87614, 92432, 115540, 123824, 130804, 134506, 150520, 154780, 163505, 175228, 219035, 231080, 261608, 269012, 301040, 309560, 327010, 336265, 350456, 410167, 438070, 462160, 523216, 538024, 619120, 654020, 672530, 700912, 820334, 876140, 1076048, 1308040, 1345060, 1640668, 1752280, 2050835, 2321771, 2616080, 2690120, 3281336, 3504560, 3564409, 4101670, 4643542, 4774963, 5380240, 6562672, 7128818, 8203340, 9287084, 9549926, 11608855, 14257636, 16406680, 17822045, 18574168, 19099852, 23217710, 23874815, 28515272, 32813360, 35644090, 37148336, 38199704, 46435420, 47749630, 57030544, 71288180, 76399408, 92870840, 95499260, 142576360, 185741680, 190998520, 253073039, 285152720, 381997040, 506146078, 1012292156, 1265365195, 2024584312, 2530730390, 4049168624, 5061460780, 10122921560, 20245843120]

約数ペア:

[(1, 20245843120), (2, 10122921560), (4, 5061460780), (5, 4049168624), (8, 2530730390), (10, 2024584312), (16, 1265365195), (20, 1012292156), (40, 506146078), (53, 381997040), (71, 285152720), (80, 253073039), (106, 190998520), (109, 185741680), (142, 142576360), (212, 95499260), (218, 92870840), (265, 76399408), (284, 71288180), (355, 57030544), (424, 47749630), (436, 46435420), (530, 38199704), (545, 37148336), (568, 35644090), (617, 32813360), (710, 28515272), (848, 23874815), (872, 23217710), (1060, 19099852), (1090, 18574168), (1136, 17822045), (1234, 16406680), (1420, 14257636), (1744, 11608855), (2120, 9549926), (2180, 9287084), (2468, 8203340), (2840, 7128818), (3085, 6562672), (3763, 5380240), (4240, 4774963), (4360, 4643542), (4936, 4101670), (5680, 3564409), (5777, 3504560), (6170, 3281336), (7526, 2690120), (7739, 2616080), (8720, 2321771), (9872, 2050835), (11554, 1752280), (12340, 1640668), (15052, 1345060), (15478, 1308040), (18815, 1076048), (23108, 876140), (24680, 820334), (28885, 700912), (30104, 672530), (30956, 654020), (32701, 619120), (37630, 538024), (38695, 523216), (43807, 462160), (46216, 438070), (49360, 410167), (57770, 350456), (60208, 336265), (61912, 327010), (65402, 309560), (67253, 301040), (75260, 269012), (77390, 261608), (87614, 231080), (92432, 219035), (115540, 175228), (123824, 163505), (130804, 154780), (134506, 150520)]