27759880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 65710080

約数和(自身を除く): 37950200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 367, 488, 610, 620, 734, 1220, 1240, 1468, 1835, 1891, 2440, 2936, 3670, 3782, 7340, 7564, 9455, 11377, 14680, 15128, 18910, 22387, 22754, 37820, 44774, 45508, 56885, 75640, 89548, 91016, 111935, 113770, 179096, 223870, 227540, 447740, 455080, 693997, 895480, 1387994, 2775988, 3469985, 5551976, 6939970, 13879940, 27759880]

約数ペア:

[(1, 27759880), (2, 13879940), (4, 6939970), (5, 5551976), (8, 3469985), (10, 2775988), (20, 1387994), (31, 895480), (40, 693997), (61, 455080), (62, 447740), (122, 227540), (124, 223870), (155, 179096), (244, 113770), (248, 111935), (305, 91016), (310, 89548), (367, 75640), (488, 56885), (610, 45508), (620, 44774), (734, 37820), (1220, 22754), (1240, 22387), (1468, 18910), (1835, 15128), (1891, 14680), (2440, 11377), (2936, 9455), (3670, 7564), (3782, 7340)]