1621360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1559}}^1$

素因数の和:1585

約数の個数: 40

約数和(自身を含む): 4062240

約数和(自身を除く): 2440880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1559, 3118, 6236, 7795, 12472, 15590, 20267, 24944, 31180, 40534, 62360, 81068, 101335, 124720, 162136, 202670, 324272, 405340, 810680, 1621360]

約数ペア:

[(1, 1621360), (2, 810680), (4, 405340), (5, 324272), (8, 202670), (10, 162136), (13, 124720), (16, 101335), (20, 81068), (26, 62360), (40, 40534), (52, 31180), (65, 24944), (80, 20267), (104, 15590), (130, 12472), (208, 7795), (260, 6236), (520, 3118), (1040, 1559)]