308911280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{124561}}^1$

素因数の和:124605

約数の個数: 40

約数和(自身を含む): 741393024

約数和(自身を除く): 432481744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 124561, 249122, 498244, 622805, 996488, 1245610, 1992976, 2491220, 3861391, 4982440, 7722782, 9964880, 15445564, 19306955, 30891128, 38613910, 61782256, 77227820, 154455640, 308911280]

約数ペア:

[(1, 308911280), (2, 154455640), (4, 77227820), (5, 61782256), (8, 38613910), (10, 30891128), (16, 19306955), (20, 15445564), (31, 9964880), (40, 7722782), (62, 4982440), (80, 3861391), (124, 2491220), (155, 1992976), (248, 1245610), (310, 996488), (496, 622805), (620, 498244), (1240, 249122), (2480, 124561)]