100018840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{17989}}^1$

素因数の和:18139

約数の個数: 32

約数和(自身を含む): 226674000

約数和(自身を除く): 126655160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 17989, 35978, 71956, 89945, 143912, 179890, 359780, 719560, 2500471, 5000942, 10001884, 12502355, 20003768, 25004710, 50009420, 100018840]

約数ペア:

[(1, 100018840), (2, 50009420), (4, 25004710), (5, 20003768), (8, 12502355), (10, 10001884), (20, 5000942), (40, 2500471), (139, 719560), (278, 359780), (556, 179890), (695, 143912), (1112, 89945), (1390, 71956), (2780, 35978), (5560, 17989)]