78872960

素因数分解:

$2^7\times 5^1\times {\mathrm{123239}}^1$

素因数の和:123258

約数の個数: 32

約数和(自身を含む): 188557200

約数和(自身を除く): 109684240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123239, 246478, 492956, 616195, 985912, 1232390, 1971824, 2464780, 3943648, 4929560, 7887296, 9859120, 15774592, 19718240, 39436480, 78872960]

約数ペア:

[(1, 78872960), (2, 39436480), (4, 19718240), (5, 15774592), (8, 9859120), (10, 7887296), (16, 4929560), (20, 3943648), (32, 2464780), (40, 1971824), (64, 1232390), (80, 985912), (128, 616195), (160, 492956), (320, 246478), (640, 123239)]