319776470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79349}}^1$

素因数の和:79400

約数の個数: 32

約数和(自身を含む): 639878400

約数和(自身を除く): 320101930

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 79349, 158698, 396745, 793490, 1031537, 2063074, 2459819, 4919638, 5157685, 10315370, 12299095, 24598190, 31977647, 63955294, 159888235, 319776470]

約数ペア:

[(1, 319776470), (2, 159888235), (5, 63955294), (10, 31977647), (13, 24598190), (26, 12299095), (31, 10315370), (62, 5157685), (65, 4919638), (130, 2459819), (155, 2063074), (310, 1031537), (403, 793490), (806, 396745), (2015, 158698), (4030, 79349)]