18249680

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1453}}^1$

素因数の和:1623

約数の個数: 40

約数和(自身を含む): 42730152

約数和(自身を除く): 24480472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1453, 1570, 2512, 2906, 3140, 5812, 6280, 7265, 11624, 12560, 14530, 23248, 29060, 58120, 116240, 228121, 456242, 912484, 1140605, 1824968, 2281210, 3649936, 4562420, 9124840, 18249680]

約数ペア:

[(1, 18249680), (2, 9124840), (4, 4562420), (5, 3649936), (8, 2281210), (10, 1824968), (16, 1140605), (20, 912484), (40, 456242), (80, 228121), (157, 116240), (314, 58120), (628, 29060), (785, 23248), (1256, 14530), (1453, 12560), (1570, 11624), (2512, 7265), (2906, 6280), (3140, 5812)]