149720420

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{23917}}^1$

素因数の和:24239

約数の個数: 24

約数和(自身を含む): 315430584

約数和(自身を除く): 165710164

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 23917, 47834, 95668, 119585, 239170, 478340, 7486021, 14972042, 29944084, 37430105, 74860210, 149720420]

約数ペア:

[(1, 149720420), (2, 74860210), (4, 37430105), (5, 29944084), (10, 14972042), (20, 7486021), (313, 478340), (626, 239170), (1252, 119585), (1565, 95668), (3130, 47834), (6260, 23917)]