178359740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{22129}}^1$

素因数の和:22182

約数の個数: 48

約数和(自身を含む): 416398080

約数和(自身を除く): 238038340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 22129, 44258, 88516, 110645, 221290, 287677, 442580, 575354, 685999, 1150708, 1371998, 1438385, 2743996, 2876770, 3429995, 5753540, 6859990, 8917987, 13719980, 17835974, 35671948, 44589935, 89179870, 178359740]

約数ペア:

[(1, 178359740), (2, 89179870), (4, 44589935), (5, 35671948), (10, 17835974), (13, 13719980), (20, 8917987), (26, 6859990), (31, 5753540), (52, 3429995), (62, 2876770), (65, 2743996), (124, 1438385), (130, 1371998), (155, 1150708), (260, 685999), (310, 575354), (403, 442580), (620, 287677), (806, 221290), (1612, 110645), (2015, 88516), (4030, 44258), (8060, 22129)]