19015980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{569}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 53434080

約数和(自身を除く): 34418100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 557, 569, 1114, 1138, 1671, 1707, 2228, 2276, 2785, 2845, 3342, 3414, 5570, 5690, 6684, 6828, 8355, 8535, 11140, 11380, 16710, 17070, 33420, 34140, 316933, 633866, 950799, 1267732, 1584665, 1901598, 3169330, 3803196, 4753995, 6338660, 9507990, 19015980]

約数ペア:

[(1, 19015980), (2, 9507990), (3, 6338660), (4, 4753995), (5, 3803196), (6, 3169330), (10, 1901598), (12, 1584665), (15, 1267732), (20, 950799), (30, 633866), (60, 316933), (557, 34140), (569, 33420), (1114, 17070), (1138, 16710), (1671, 11380), (1707, 11140), (2228, 8535), (2276, 8355), (2785, 6828), (2845, 6684), (3342, 5690), (3414, 5570)]