197072720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{189493}}^1$

素因数の和:189519

約数の個数: 40

約数和(自身を含む): 493442376

約数和(自身を除く): 296369656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 189493, 378986, 757972, 947465, 1515944, 1894930, 2463409, 3031888, 3789860, 4926818, 7579720, 9853636, 12317045, 15159440, 19707272, 24634090, 39414544, 49268180, 98536360, 197072720]

約数ペア:

[(1, 197072720), (2, 98536360), (4, 49268180), (5, 39414544), (8, 24634090), (10, 19707272), (13, 15159440), (16, 12317045), (20, 9853636), (26, 7579720), (40, 4926818), (52, 3789860), (65, 3031888), (80, 2463409), (104, 1894930), (130, 1515944), (208, 947465), (260, 757972), (520, 378986), (1040, 189493)]