71640640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11783}}^1$

素因数の和:11819

約数の個数: 56

約数和(自身を含む): 179588160

約数和(自身を除く): 107947520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 11783, 23566, 47132, 58915, 94264, 117830, 188528, 223877, 235660, 377056, 447754, 471320, 754112, 895508, 942640, 1119385, 1791016, 1885280, 2238770, 3582032, 3770560, 4477540, 7164064, 8955080, 14328128, 17910160, 35820320, 71640640]

約数ペア:

[(1, 71640640), (2, 35820320), (4, 17910160), (5, 14328128), (8, 8955080), (10, 7164064), (16, 4477540), (19, 3770560), (20, 3582032), (32, 2238770), (38, 1885280), (40, 1791016), (64, 1119385), (76, 942640), (80, 895508), (95, 754112), (152, 471320), (160, 447754), (190, 377056), (304, 235660), (320, 223877), (380, 188528), (608, 117830), (760, 94264), (1216, 58915), (1520, 47132), (3040, 23566), (6080, 11783)]