200022620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20123}}^1$

素因数の和:20210

約数の個数: 48

約数和(自身を含む): 486839808

約数和(自身を除く): 286817188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 20123, 40246, 80492, 100615, 140861, 201230, 281722, 402460, 563444, 704305, 1408610, 1428733, 2817220, 2857466, 5714932, 7143665, 10001131, 14287330, 20002262, 28574660, 40004524, 50005655, 100011310, 200022620]

約数ペア:

[(1, 200022620), (2, 100011310), (4, 50005655), (5, 40004524), (7, 28574660), (10, 20002262), (14, 14287330), (20, 10001131), (28, 7143665), (35, 5714932), (70, 2857466), (71, 2817220), (140, 1428733), (142, 1408610), (284, 704305), (355, 563444), (497, 402460), (710, 281722), (994, 201230), (1420, 140861), (1988, 100615), (2485, 80492), (4970, 40246), (9940, 20123)]