78865540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23333}}^1$

素因数の和:23368

約数の個数: 36

約数和(自身を含む): 179345124

約数和(自身を除く): 100479584

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 23333, 46666, 93332, 116665, 233330, 303329, 466660, 606658, 1213316, 1516645, 3033290, 3943277, 6066580, 7886554, 15773108, 19716385, 39432770, 78865540]

約数ペア:

[(1, 78865540), (2, 39432770), (4, 19716385), (5, 15773108), (10, 7886554), (13, 6066580), (20, 3943277), (26, 3033290), (52, 1516645), (65, 1213316), (130, 606658), (169, 466660), (260, 303329), (338, 233330), (676, 116665), (845, 93332), (1690, 46666), (3380, 23333)]