81713390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1181}}^1$

素因数の和:1253

約数の個数: 64

約数和(自身を含む): 174633408

約数和(自身を除く): 92920018

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 37, 55, 74, 85, 110, 170, 185, 187, 370, 374, 407, 629, 814, 935, 1181, 1258, 1870, 2035, 2362, 3145, 4070, 5905, 6290, 6919, 11810, 12991, 13838, 20077, 25982, 34595, 40154, 43697, 64955, 69190, 87394, 100385, 129910, 200770, 218485, 220847, 436970, 441694, 480667, 742849, 961334, 1104235, 1485698, 2208470, 2403335, 3714245, 4806670, 7428490, 8171339, 16342678, 40856695, 81713390]

約数ペア:

[(1, 81713390), (2, 40856695), (5, 16342678), (10, 8171339), (11, 7428490), (17, 4806670), (22, 3714245), (34, 2403335), (37, 2208470), (55, 1485698), (74, 1104235), (85, 961334), (110, 742849), (170, 480667), (185, 441694), (187, 436970), (370, 220847), (374, 218485), (407, 200770), (629, 129910), (814, 100385), (935, 87394), (1181, 69190), (1258, 64955), (1870, 43697), (2035, 40154), (2362, 34595), (3145, 25982), (4070, 20077), (5905, 13838), (6290, 12991), (6919, 11810)]