489603880

素因数分解:

$2^3\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{5717}}^1$

素因数の和:7869

約数の個数: 32

約数和(自身を含む): 1102316040

約数和(自身を除く): 612712160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2141, 4282, 5717, 8564, 10705, 11434, 17128, 21410, 22868, 28585, 42820, 45736, 57170, 85640, 114340, 228680, 12240097, 24480194, 48960388, 61200485, 97920776, 122400970, 244801940, 489603880]

約数ペア:

[(1, 489603880), (2, 244801940), (4, 122400970), (5, 97920776), (8, 61200485), (10, 48960388), (20, 24480194), (40, 12240097), (2141, 228680), (4282, 114340), (5717, 85640), (8564, 57170), (10705, 45736), (11434, 42820), (17128, 28585), (21410, 22868)]