2021656840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{101693}}^1$

素因数の和:101782

約数の個数: 64

約数和(自身を含む): 5271816960

約数和(自身を除く): 3250160120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 19880, 101693, 203386, 406772, 508465, 711851, 813544, 1016930, 1423702, 2033860, 2847404, 3559255, 4067720, 5694808, 7118510, 7220203, 14237020, 14440406, 28474040, 28880812, 36101015, 50541421, 57761624, 72202030, 101082842, 144404060, 202165684, 252707105, 288808120, 404331368, 505414210, 1010828420, 2021656840]

約数ペア:

[(1, 2021656840), (2, 1010828420), (4, 505414210), (5, 404331368), (7, 288808120), (8, 252707105), (10, 202165684), (14, 144404060), (20, 101082842), (28, 72202030), (35, 57761624), (40, 50541421), (56, 36101015), (70, 28880812), (71, 28474040), (140, 14440406), (142, 14237020), (280, 7220203), (284, 7118510), (355, 5694808), (497, 4067720), (568, 3559255), (710, 2847404), (994, 2033860), (1420, 1423702), (1988, 1016930), (2485, 813544), (2840, 711851), (3976, 508465), (4970, 406772), (9940, 203386), (19880, 101693)]