20517660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3677}}^1$

素因数の和:3723

約数の個数: 72

約数和(自身を含む): 64262016

約数和(自身を除く): 43744356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3677, 5580, 7354, 11031, 14708, 18385, 22062, 33093, 36770, 44124, 55155, 66186, 73540, 110310, 113987, 132372, 165465, 220620, 227974, 330930, 341961, 455948, 569935, 661860, 683922, 1025883, 1139870, 1367844, 1709805, 2051766, 2279740, 3419610, 4103532, 5129415, 6839220, 10258830, 20517660]

約数ペア:

[(1, 20517660), (2, 10258830), (3, 6839220), (4, 5129415), (5, 4103532), (6, 3419610), (9, 2279740), (10, 2051766), (12, 1709805), (15, 1367844), (18, 1139870), (20, 1025883), (30, 683922), (31, 661860), (36, 569935), (45, 455948), (60, 341961), (62, 330930), (90, 227974), (93, 220620), (124, 165465), (155, 132372), (180, 113987), (186, 110310), (279, 73540), (310, 66186), (372, 55155), (465, 44124), (558, 36770), (620, 33093), (930, 22062), (1116, 18385), (1395, 14708), (1860, 11031), (2790, 7354), (3677, 5580)]