64704020

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{8447}}^1$

素因数の和:8839

約数の個数: 24

約数和(自身を含む): 136249344

約数和(自身を除く): 71545324

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 3830, 7660, 8447, 16894, 33788, 42235, 84470, 168940, 3235201, 6470402, 12940804, 16176005, 32352010, 64704020]

約数ペア:

[(1, 64704020), (2, 32352010), (4, 16176005), (5, 12940804), (10, 6470402), (20, 3235201), (383, 168940), (766, 84470), (1532, 42235), (1915, 33788), (3830, 16894), (7660, 8447)]