19664710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{457}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 38318112

約数和(自身を除く): 18653402

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 331, 457, 662, 914, 1655, 2285, 3310, 4303, 4570, 5941, 8606, 11882, 21515, 29705, 43030, 59410, 151267, 302534, 756335, 1512670, 1966471, 3932942, 9832355, 19664710]

約数ペア:

[(1, 19664710), (2, 9832355), (5, 3932942), (10, 1966471), (13, 1512670), (26, 756335), (65, 302534), (130, 151267), (331, 59410), (457, 43030), (662, 29705), (914, 21515), (1655, 11882), (2285, 8606), (3310, 5941), (4303, 4570)]