18986781640

素因数分解:

$2^3\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1016423}}^1$

素因数の和:1016901

約数の個数: 32

約数和(自身を含む): 42811778880

約数和(自身を除く): 23824997240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 467, 934, 1868, 2335, 3736, 4670, 9340, 18680, 1016423, 2032846, 4065692, 5082115, 8131384, 10164230, 20328460, 40656920, 474669541, 949339082, 1898678164, 2373347705, 3797356328, 4746695410, 9493390820, 18986781640]

約数ペア:

[(1, 18986781640), (2, 9493390820), (4, 4746695410), (5, 3797356328), (8, 2373347705), (10, 1898678164), (20, 949339082), (40, 474669541), (467, 40656920), (934, 20328460), (1868, 10164230), (2335, 8131384), (3736, 5082115), (4670, 4065692), (9340, 2032846), (18680, 1016423)]