157165720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{911}}^1$

素因数の和:1168

約数の個数: 64

約数和(自身を含む): 374284800

約数和(自身を除く): 217119080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 227, 380, 454, 760, 908, 911, 1135, 1816, 1822, 2270, 3644, 4313, 4540, 4555, 7288, 8626, 9080, 9110, 17252, 17309, 18220, 21565, 34504, 34618, 36440, 43130, 69236, 86260, 86545, 138472, 172520, 173090, 206797, 346180, 413594, 692360, 827188, 1033985, 1654376, 2067970, 3929143, 4135940, 7858286, 8271880, 15716572, 19645715, 31433144, 39291430, 78582860, 157165720]

約数ペア:

[(1, 157165720), (2, 78582860), (4, 39291430), (5, 31433144), (8, 19645715), (10, 15716572), (19, 8271880), (20, 7858286), (38, 4135940), (40, 3929143), (76, 2067970), (95, 1654376), (152, 1033985), (190, 827188), (227, 692360), (380, 413594), (454, 346180), (760, 206797), (908, 173090), (911, 172520), (1135, 138472), (1816, 86545), (1822, 86260), (2270, 69236), (3644, 43130), (4313, 36440), (4540, 34618), (4555, 34504), (7288, 21565), (8626, 18220), (9080, 17309), (9110, 17252)]