128931800

素因数分解:

$2^3\times 5^2\times {\mathrm{571}}^1\times {\mathrm{1129}}^1$

素因数の和:1716

約数の個数: 48

約数和(自身を含む): 300557400

約数和(自身を除く): 171625600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 571, 1129, 1142, 2258, 2284, 2855, 4516, 4568, 5645, 5710, 9032, 11290, 11420, 14275, 22580, 22840, 28225, 28550, 45160, 56450, 57100, 112900, 114200, 225800, 644659, 1289318, 2578636, 3223295, 5157272, 6446590, 12893180, 16116475, 25786360, 32232950, 64465900, 128931800]

約数ペア:

[(1, 128931800), (2, 64465900), (4, 32232950), (5, 25786360), (8, 16116475), (10, 12893180), (20, 6446590), (25, 5157272), (40, 3223295), (50, 2578636), (100, 1289318), (200, 644659), (571, 225800), (1129, 114200), (1142, 112900), (2258, 57100), (2284, 56450), (2855, 45160), (4516, 28550), (4568, 28225), (5645, 22840), (5710, 22580), (9032, 14275), (11290, 11420)]