64478820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{153521}}^1$

素因数の和:153540

約数の個数: 48

約数和(自身を含む): 206333568

約数和(自身を除く): 141854748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 153521, 307042, 460563, 614084, 767605, 921126, 1074647, 1535210, 1842252, 2149294, 2302815, 3070420, 3223941, 4298588, 4605630, 5373235, 6447882, 9211260, 10746470, 12895764, 16119705, 21492940, 32239410, 64478820]

約数ペア:

[(1, 64478820), (2, 32239410), (3, 21492940), (4, 16119705), (5, 12895764), (6, 10746470), (7, 9211260), (10, 6447882), (12, 5373235), (14, 4605630), (15, 4298588), (20, 3223941), (21, 3070420), (28, 2302815), (30, 2149294), (35, 1842252), (42, 1535210), (60, 1074647), (70, 921126), (84, 767605), (105, 614084), (140, 460563), (210, 307042), (420, 153521)]