20619420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{857}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 57945888

約数和(自身を除く): 37326468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 401, 802, 857, 1203, 1604, 1714, 2005, 2406, 2571, 3428, 4010, 4285, 4812, 5142, 6015, 8020, 8570, 10284, 12030, 12855, 17140, 24060, 25710, 51420, 343657, 687314, 1030971, 1374628, 1718285, 2061942, 3436570, 4123884, 5154855, 6873140, 10309710, 20619420]

約数ペア:

[(1, 20619420), (2, 10309710), (3, 6873140), (4, 5154855), (5, 4123884), (6, 3436570), (10, 2061942), (12, 1718285), (15, 1374628), (20, 1030971), (30, 687314), (60, 343657), (401, 51420), (802, 25710), (857, 24060), (1203, 17140), (1604, 12855), (1714, 12030), (2005, 10284), (2406, 8570), (2571, 8020), (3428, 6015), (4010, 5142), (4285, 4812)]