55212820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2909}}^1$

素因数の和:3004

約数の個数: 48

約数和(自身を含む): 126619920

約数和(自身を除く): 71407100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 2909, 3796, 4745, 5818, 9490, 11636, 14545, 18980, 29090, 37817, 58180, 75634, 151268, 189085, 212357, 378170, 424714, 756340, 849428, 1061785, 2123570, 2760641, 4247140, 5521282, 11042564, 13803205, 27606410, 55212820]

約数ペア:

[(1, 55212820), (2, 27606410), (4, 13803205), (5, 11042564), (10, 5521282), (13, 4247140), (20, 2760641), (26, 2123570), (52, 1061785), (65, 849428), (73, 756340), (130, 424714), (146, 378170), (260, 212357), (292, 189085), (365, 151268), (730, 75634), (949, 58180), (1460, 37817), (1898, 29090), (2909, 18980), (3796, 14545), (4745, 11636), (5818, 9490)]