1247408020

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{162847}}^1$

素因数の和:163239

約数の個数: 24

約数和(自身を含む): 2626412544

約数和(自身を除く): 1379004524

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 3830, 7660, 162847, 325694, 651388, 814235, 1628470, 3256940, 62370401, 124740802, 249481604, 311852005, 623704010, 1247408020]

約数ペア:

[(1, 1247408020), (2, 623704010), (4, 311852005), (5, 249481604), (10, 124740802), (20, 62370401), (383, 3256940), (766, 1628470), (1532, 814235), (1915, 651388), (3830, 325694), (7660, 162847)]