20435480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3023}}^1$

素因数の和:3060

約数の個数: 48

約数和(自身を含む): 49805280

約数和(自身を除く): 29369800

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, 3023, 3380, 6046, 6760, 12092, 15115, 24184, 30230, 39299, 60460, 78598, 120920, 157196, 196495, 314392, 392990, 510887, 785980, 1021774, 1571960, 2043548, 2554435, 4087096, 5108870, 10217740, 20435480]

約数ペア:

[(1, 20435480), (2, 10217740), (4, 5108870), (5, 4087096), (8, 2554435), (10, 2043548), (13, 1571960), (20, 1021774), (26, 785980), (40, 510887), (52, 392990), (65, 314392), (104, 196495), (130, 157196), (169, 120920), (260, 78598), (338, 60460), (520, 39299), (676, 30230), (845, 24184), (1352, 15115), (1690, 12092), (3023, 6760), (3380, 6046)]