138792220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13963}}^1$

素因数の和:14050

約数の個数: 48

約数和(自身を含む): 337817088

約数和(自身を除く): 199024868

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, 13963, 27926, 55852, 69815, 97741, 139630, 195482, 279260, 390964, 488705, 977410, 991373, 1954820, 1982746, 3965492, 4956865, 6939611, 9913730, 13879222, 19827460, 27758444, 34698055, 69396110, 138792220]

約数ペア:

[(1, 138792220), (2, 69396110), (4, 34698055), (5, 27758444), (7, 19827460), (10, 13879222), (14, 9913730), (20, 6939611), (28, 4956865), (35, 3965492), (70, 1982746), (71, 1954820), (140, 991373), (142, 977410), (284, 488705), (355, 390964), (497, 279260), (710, 195482), (994, 139630), (1420, 97741), (1988, 69815), (2485, 55852), (4970, 27926), (9940, 13963)]