78929980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{863}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 176359680

約数和(自身を除く): 97429700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 269, 340, 538, 863, 1076, 1345, 1726, 2690, 3452, 4315, 4573, 5380, 8630, 9146, 14671, 17260, 18292, 22865, 29342, 45730, 58684, 73355, 91460, 146710, 232147, 293420, 464294, 928588, 1160735, 2321470, 3946499, 4642940, 7892998, 15785996, 19732495, 39464990, 78929980]

約数ペア:

[(1, 78929980), (2, 39464990), (4, 19732495), (5, 15785996), (10, 7892998), (17, 4642940), (20, 3946499), (34, 2321470), (68, 1160735), (85, 928588), (170, 464294), (269, 293420), (340, 232147), (538, 146710), (863, 91460), (1076, 73355), (1345, 58684), (1726, 45730), (2690, 29342), (3452, 22865), (4315, 18292), (4573, 17260), (5380, 14671), (8630, 9146)]