15939880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2170

約数の個数: 64

約数和(自身を含む): 41446080

約数和(自身を除く): 25506200

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2131, 3740, 4262, 7480, 8524, 10655, 17048, 21310, 23441, 36227, 42620, 46882, 72454, 85240, 93764, 117205, 144908, 181135, 187528, 234410, 289816, 362270, 398497, 468820, 724540, 796994, 937640, 1449080, 1593988, 1992485, 3187976, 3984970, 7969940, 15939880]

約数ペア:

[(1, 15939880), (2, 7969940), (4, 3984970), (5, 3187976), (8, 1992485), (10, 1593988), (11, 1449080), (17, 937640), (20, 796994), (22, 724540), (34, 468820), (40, 398497), (44, 362270), (55, 289816), (68, 234410), (85, 187528), (88, 181135), (110, 144908), (136, 117205), (170, 93764), (187, 85240), (220, 72454), (340, 46882), (374, 42620), (440, 36227), (680, 23441), (748, 21310), (935, 17048), (1496, 10655), (1870, 8524), (2131, 7480), (3740, 4262)]