64968020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3163}}^1$

素因数の和:3264

約数の個数: 48

約数和(自身を含む): 148834560

約数和(自身を除く): 83866540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 3163, 4108, 5135, 6326, 10270, 12652, 15815, 20540, 31630, 41119, 63260, 82238, 164476, 205595, 249877, 411190, 499754, 822380, 999508, 1249385, 2498770, 3248401, 4997540, 6496802, 12993604, 16242005, 32484010, 64968020]

約数ペア:

[(1, 64968020), (2, 32484010), (4, 16242005), (5, 12993604), (10, 6496802), (13, 4997540), (20, 3248401), (26, 2498770), (52, 1249385), (65, 999508), (79, 822380), (130, 499754), (158, 411190), (260, 249877), (316, 205595), (395, 164476), (790, 82238), (1027, 63260), (1580, 41119), (2054, 31630), (3163, 20540), (4108, 15815), (5135, 12652), (6326, 10270)]