42530420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 92244096

約数和(自身を除く): 49713676

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 491, 610, 710, 982, 1220, 1420, 1964, 2455, 4331, 4910, 8662, 9820, 17324, 21655, 29951, 34861, 43310, 59902, 69722, 86620, 119804, 139444, 149755, 174305, 299510, 348610, 599020, 697220, 2126521, 4253042, 8506084, 10632605, 21265210, 42530420]

約数ペア:

[(1, 42530420), (2, 21265210), (4, 10632605), (5, 8506084), (10, 4253042), (20, 2126521), (61, 697220), (71, 599020), (122, 348610), (142, 299510), (244, 174305), (284, 149755), (305, 139444), (355, 119804), (491, 86620), (610, 69722), (710, 59902), (982, 43310), (1220, 34861), (1420, 29951), (1964, 21655), (2455, 17324), (4331, 9820), (4910, 8662)]