64840360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124693}}^1$

素因数の和:124717

約数の個数: 32

約数和(自身を含む): 157114440

約数和(自身を除く): 92274080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124693, 249386, 498772, 623465, 997544, 1246930, 1621009, 2493860, 3242018, 4987720, 6484036, 8105045, 12968072, 16210090, 32420180, 64840360]

約数ペア:

[(1, 64840360), (2, 32420180), (4, 16210090), (5, 12968072), (8, 8105045), (10, 6484036), (13, 4987720), (20, 3242018), (26, 2493860), (40, 1621009), (52, 1246930), (65, 997544), (104, 623465), (130, 498772), (260, 249386), (520, 124693)]