20165972012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1\times {\mathrm{2939}}^1$

素因数の和:3758

約数の個数: 48

約数和(自身を含む): 37488528000

約数和(自身を除く): 17322555988

約数列:

[1, 2, 4, 19, 38, 76, 137, 274, 548, 659, 1318, 2603, 2636, 2939, 5206, 5878, 10412, 11756, 12521, 25042, 50084, 55841, 90283, 111682, 180566, 223364, 361132, 402643, 805286, 1610572, 1715377, 1936801, 3430754, 3873602, 6861508, 7650217, 7747204, 15300434, 30600868, 36799219, 73598438, 147196876, 265341737, 530683474, 1061366948, 5041493003, 10082986006, 20165972012]

約数ペア:

[(1, 20165972012), (2, 10082986006), (4, 5041493003), (19, 1061366948), (38, 530683474), (76, 265341737), (137, 147196876), (274, 73598438), (548, 36799219), (659, 30600868), (1318, 15300434), (2603, 7747204), (2636, 7650217), (2939, 6861508), (5206, 3873602), (5878, 3430754), (10412, 1936801), (11756, 1715377), (12521, 1610572), (25042, 805286), (50084, 402643), (55841, 361132), (90283, 223364), (111682, 180566)]