7690020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9859}}^1$

素因数の和:9884

約数の個数: 48

約数和(自身を含む): 23190720

約数和(自身を除く): 15500700

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, 9859, 19718, 29577, 39436, 49295, 59154, 98590, 118308, 128167, 147885, 197180, 256334, 295770, 384501, 512668, 591540, 640835, 769002, 1281670, 1538004, 1922505, 2563340, 3845010, 7690020]

約数ペア:

[(1, 7690020), (2, 3845010), (3, 2563340), (4, 1922505), (5, 1538004), (6, 1281670), (10, 769002), (12, 640835), (13, 591540), (15, 512668), (20, 384501), (26, 295770), (30, 256334), (39, 197180), (52, 147885), (60, 128167), (65, 118308), (78, 98590), (130, 59154), (156, 49295), (195, 39436), (260, 29577), (390, 19718), (780, 9859)]