18256520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14723}}^1$

素因数の和:14765

約数の個数: 32

約数和(自身を含む): 42405120

約数和(自身を除く): 24148600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 14723, 29446, 58892, 73615, 117784, 147230, 294460, 456413, 588920, 912826, 1825652, 2282065, 3651304, 4564130, 9128260, 18256520]

約数ペア:

[(1, 18256520), (2, 9128260), (4, 4564130), (5, 3651304), (8, 2282065), (10, 1825652), (20, 912826), (31, 588920), (40, 456413), (62, 294460), (124, 147230), (155, 117784), (248, 73615), (310, 58892), (620, 29446), (1240, 14723)]