205256740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11119}}^1$

素因数の和:11212

約数の個数: 48

約数和(自身を含む): 470776320

約数和(自身を除く): 265519580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 11119, 18460, 22238, 44476, 55595, 111190, 144547, 222380, 289094, 578188, 722735, 789449, 1445470, 1578898, 2890940, 3157796, 3947245, 7894490, 10262837, 15788980, 20525674, 41051348, 51314185, 102628370, 205256740]

約数ペア:

[(1, 205256740), (2, 102628370), (4, 51314185), (5, 41051348), (10, 20525674), (13, 15788980), (20, 10262837), (26, 7894490), (52, 3947245), (65, 3157796), (71, 2890940), (130, 1578898), (142, 1445470), (260, 789449), (284, 722735), (355, 578188), (710, 289094), (923, 222380), (1420, 144547), (1846, 111190), (3692, 55595), (4615, 44476), (9230, 22238), (11119, 18460)]