309933780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397351}}^1$

素因数の和:397376

約数の個数: 48

約数和(自身を含む): 934571904

約数和(自身を除く): 624638124

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, 397351, 794702, 1192053, 1589404, 1986755, 2384106, 3973510, 4768212, 5165563, 5960265, 7947020, 10331126, 11920530, 15496689, 20662252, 23841060, 25827815, 30993378, 51655630, 61986756, 77483445, 103311260, 154966890, 309933780]

約数ペア:

[(1, 309933780), (2, 154966890), (3, 103311260), (4, 77483445), (5, 61986756), (6, 51655630), (10, 30993378), (12, 25827815), (13, 23841060), (15, 20662252), (20, 15496689), (26, 11920530), (30, 10331126), (39, 7947020), (52, 5960265), (60, 5165563), (65, 4768212), (78, 3973510), (130, 2384106), (156, 1986755), (195, 1589404), (260, 1192053), (390, 794702), (780, 397351)]