17971980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23041}}^1$

素因数の和:23066

約数の個数: 48

約数和(自身を含む): 54194784

約数和(自身を除く): 36222804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23041, 46082, 69123, 92164, 115205, 138246, 230410, 276492, 299533, 345615, 460820, 599066, 691230, 898599, 1198132, 1382460, 1497665, 1797198, 2995330, 3594396, 4492995, 5990660, 8985990, 17971980]

約数ペア:

[(1, 17971980), (2, 8985990), (3, 5990660), (4, 4492995), (5, 3594396), (6, 2995330), (10, 1797198), (12, 1497665), (13, 1382460), (15, 1198132), (20, 898599), (26, 691230), (30, 599066), (39, 460820), (52, 345615), (60, 299533), (65, 276492), (78, 230410), (130, 138246), (156, 115205), (195, 92164), (260, 69123), (390, 46082), (780, 23041)]