17927500

素因数分解:

$2^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 60

約数和(自身を含む): 40149648

約数和(自身を除く): 22222148

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 101, 125, 142, 202, 250, 284, 355, 404, 500, 505, 625, 710, 1010, 1250, 1420, 1775, 2020, 2500, 2525, 3550, 5050, 7100, 7171, 8875, 10100, 12625, 14342, 17750, 25250, 28684, 35500, 35855, 44375, 50500, 63125, 71710, 88750, 126250, 143420, 177500, 179275, 252500, 358550, 717100, 896375, 1792750, 3585500, 4481875, 8963750, 17927500]

約数ペア:

[(1, 17927500), (2, 8963750), (4, 4481875), (5, 3585500), (10, 1792750), (20, 896375), (25, 717100), (50, 358550), (71, 252500), (100, 179275), (101, 177500), (125, 143420), (142, 126250), (202, 88750), (250, 71710), (284, 63125), (355, 50500), (404, 44375), (500, 35855), (505, 35500), (625, 28684), (710, 25250), (1010, 17750), (1250, 14342), (1420, 12625), (1775, 10100), (2020, 8875), (2500, 7171), (2525, 7100), (3550, 5050)]