78727820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1373}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 171739008

約数和(自身を除く): 93011188

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 188, 235, 244, 305, 470, 610, 940, 1220, 1373, 2746, 2867, 5492, 5734, 6865, 11468, 13730, 14335, 27460, 28670, 57340, 64531, 83753, 129062, 167506, 258124, 322655, 335012, 418765, 645310, 837530, 1290620, 1675060, 3936391, 7872782, 15745564, 19681955, 39363910, 78727820]

約数ペア:

[(1, 78727820), (2, 39363910), (4, 19681955), (5, 15745564), (10, 7872782), (20, 3936391), (47, 1675060), (61, 1290620), (94, 837530), (122, 645310), (188, 418765), (235, 335012), (244, 322655), (305, 258124), (470, 167506), (610, 129062), (940, 83753), (1220, 64531), (1373, 57340), (2746, 28670), (2867, 27460), (5492, 14335), (5734, 13730), (6865, 11468)]