20178983380

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9795623}}^1$

素因数の和:9795735

約数の個数: 24

約数和(自身を含む): 42787285632

約数和(自身を除く): 22608302252

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9795623, 19591246, 39182492, 48978115, 97956230, 195912460, 1008949169, 2017898338, 4035796676, 5044745845, 10089491690, 20178983380]

約数ペア:

[(1, 20178983380), (2, 10089491690), (4, 5044745845), (5, 4035796676), (10, 2017898338), (20, 1008949169), (103, 195912460), (206, 97956230), (412, 48978115), (515, 39182492), (1030, 19591246), (2060, 9795623)]