20145861320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2980157}}^1$

素因数の和:2980194

約数の個数: 48

約数和(自身を含む): 49083202260

約数和(自身を除く): 28937340940

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 2980157, 5960314, 11920628, 14900785, 23841256, 29801570, 38742041, 59603140, 77484082, 119206280, 154968164, 193710205, 309936328, 387420410, 503646533, 774840820, 1007293066, 1549681640, 2014586132, 2518232665, 4029172264, 5036465330, 10072930660, 20145861320]

約数ペア:

[(1, 20145861320), (2, 10072930660), (4, 5036465330), (5, 4029172264), (8, 2518232665), (10, 2014586132), (13, 1549681640), (20, 1007293066), (26, 774840820), (40, 503646533), (52, 387420410), (65, 309936328), (104, 193710205), (130, 154968164), (169, 119206280), (260, 77484082), (338, 59603140), (520, 38742041), (676, 29801570), (845, 23841256), (1352, 14900785), (1690, 11920628), (3380, 5960314), (6760, 2980157)]