87219220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1567}}^1$

素因数の和:1621

約数の個数: 72

約数和(自身を含む): 210212352

約数和(自身を除く): 122993132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 460, 484, 506, 605, 1012, 1210, 1265, 1567, 2420, 2530, 2783, 3134, 5060, 5566, 6268, 7835, 11132, 13915, 15670, 17237, 27830, 31340, 34474, 36041, 55660, 68948, 72082, 86185, 144164, 172370, 180205, 189607, 344740, 360410, 379214, 396451, 720820, 758428, 792902, 948035, 1585804, 1896070, 1982255, 3792140, 3964510, 4360961, 7929020, 8721922, 17443844, 21804805, 43609610, 87219220]

約数ペア:

[(1, 87219220), (2, 43609610), (4, 21804805), (5, 17443844), (10, 8721922), (11, 7929020), (20, 4360961), (22, 3964510), (23, 3792140), (44, 1982255), (46, 1896070), (55, 1585804), (92, 948035), (110, 792902), (115, 758428), (121, 720820), (220, 396451), (230, 379214), (242, 360410), (253, 344740), (460, 189607), (484, 180205), (506, 172370), (605, 144164), (1012, 86185), (1210, 72082), (1265, 68948), (1567, 55660), (2420, 36041), (2530, 34474), (2783, 31340), (3134, 27830), (5060, 17237), (5566, 15670), (6268, 13915), (7835, 11132)]