68820440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{132347}}^1$

素因数の和:132371

約数の個数: 32

約数和(自身を含む): 166758480

約数和(自身を除く): 97938040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 132347, 264694, 529388, 661735, 1058776, 1323470, 1720511, 2646940, 3441022, 5293880, 6882044, 8602555, 13764088, 17205110, 34410220, 68820440]

約数ペア:

[(1, 68820440), (2, 34410220), (4, 17205110), (5, 13764088), (8, 8602555), (10, 6882044), (13, 5293880), (20, 3441022), (26, 2646940), (40, 1720511), (52, 1323470), (65, 1058776), (104, 661735), (130, 529388), (260, 264694), (520, 132347)]