129339880

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{13417}}^1$

素因数の和:13669

約数の個数: 32

約数和(自身を含む): 292244040

約数和(自身を除く): 162904160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 13417, 26834, 53668, 67085, 107336, 134170, 268340, 536680, 3233497, 6466994, 12933988, 16167485, 25867976, 32334970, 64669940, 129339880]

約数ペア:

[(1, 129339880), (2, 64669940), (4, 32334970), (5, 25867976), (8, 16167485), (10, 12933988), (20, 6466994), (40, 3233497), (241, 536680), (482, 268340), (964, 134170), (1205, 107336), (1928, 67085), (2410, 53668), (4820, 26834), (9640, 13417)]