66824680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128509}}^1$

素因数の和:128533

約数の個数: 32

約数和(自身を含む): 161922600

約数和(自身を除く): 95097920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128509, 257018, 514036, 642545, 1028072, 1285090, 1670617, 2570180, 3341234, 5140360, 6682468, 8353085, 13364936, 16706170, 33412340, 66824680]

約数ペア:

[(1, 66824680), (2, 33412340), (4, 16706170), (5, 13364936), (8, 8353085), (10, 6682468), (13, 5140360), (20, 3341234), (26, 2570180), (40, 1670617), (52, 1285090), (65, 1028072), (104, 642545), (130, 514036), (260, 257018), (520, 128509)]