219345980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{22067}}^1$

素因数の和:22154

約数の個数: 48

約数和(自身を含む): 533869056

約数和(自身を除く): 314523076

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, 22067, 44134, 88268, 110335, 154469, 220670, 308938, 441340, 617876, 772345, 1544690, 1566757, 3089380, 3133514, 6267028, 7833785, 10967299, 15667570, 21934598, 31335140, 43869196, 54836495, 109672990, 219345980]

約数ペア:

[(1, 219345980), (2, 109672990), (4, 54836495), (5, 43869196), (7, 31335140), (10, 21934598), (14, 15667570), (20, 10967299), (28, 7833785), (35, 6267028), (70, 3133514), (71, 3089380), (140, 1566757), (142, 1544690), (284, 772345), (355, 617876), (497, 441340), (710, 308938), (994, 220670), (1420, 154469), (1988, 110335), (2485, 88268), (4970, 44134), (9940, 22067)]