20196985540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1931}}^1\times {\mathrm{3331}}^1$

素因数の和:5428

約数の個数: 48

約数和(自身を含む): 42718745664

約数和(自身を除く): 22521760124

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 1931, 3140, 3331, 3862, 6662, 7724, 9655, 13324, 16655, 19310, 33310, 38620, 66620, 303167, 522967, 606334, 1045934, 1212668, 1515835, 2091868, 2614835, 3031670, 5229670, 6063340, 6432161, 10459340, 12864322, 25728644, 32160805, 64321610, 128643220, 1009849277, 2019698554, 4039397108, 5049246385, 10098492770, 20196985540]

約数ペア:

[(1, 20196985540), (2, 10098492770), (4, 5049246385), (5, 4039397108), (10, 2019698554), (20, 1009849277), (157, 128643220), (314, 64321610), (628, 32160805), (785, 25728644), (1570, 12864322), (1931, 10459340), (3140, 6432161), (3331, 6063340), (3862, 5229670), (6662, 3031670), (7724, 2614835), (9655, 2091868), (13324, 1515835), (16655, 1212668), (19310, 1045934), (33310, 606334), (38620, 522967), (66620, 303167)]