85801820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{997}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 194825568

約数和(自身を除く): 109023748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 331, 662, 997, 1324, 1655, 1994, 3310, 3988, 4303, 4985, 6620, 8606, 9970, 12961, 17212, 19940, 21515, 25922, 43030, 51844, 64805, 86060, 129610, 259220, 330007, 660014, 1320028, 1650035, 3300070, 4290091, 6600140, 8580182, 17160364, 21450455, 42900910, 85801820]

約数ペア:

[(1, 85801820), (2, 42900910), (4, 21450455), (5, 17160364), (10, 8580182), (13, 6600140), (20, 4290091), (26, 3300070), (52, 1650035), (65, 1320028), (130, 660014), (260, 330007), (331, 259220), (662, 129610), (997, 86060), (1324, 64805), (1655, 51844), (1994, 43030), (3310, 25922), (3988, 21515), (4303, 19940), (4985, 17212), (6620, 12961), (8606, 9970)]