13407880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4243}}^1$

素因数の和:4333

約数の個数: 32

約数和(自身を含む): 30556800

約数和(自身を除く): 17148920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4243, 8486, 16972, 21215, 33944, 42430, 84860, 169720, 335197, 670394, 1340788, 1675985, 2681576, 3351970, 6703940, 13407880]

約数ペア:

[(1, 13407880), (2, 6703940), (4, 3351970), (5, 2681576), (8, 1675985), (10, 1340788), (20, 670394), (40, 335197), (79, 169720), (158, 84860), (316, 42430), (395, 33944), (632, 21215), (790, 16972), (1580, 8486), (3160, 4243)]