25511420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1901}}^1$

素因数の和:1982

約数の個数: 48

約数和(自身を含む): 59433696

約数和(自身を除く): 33922276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 1901, 2684, 3355, 3802, 6710, 7604, 9505, 13420, 19010, 20911, 38020, 41822, 83644, 104555, 115961, 209110, 231922, 418220, 463844, 579805, 1159610, 1275571, 2319220, 2551142, 5102284, 6377855, 12755710, 25511420]

約数ペア:

[(1, 25511420), (2, 12755710), (4, 6377855), (5, 5102284), (10, 2551142), (11, 2319220), (20, 1275571), (22, 1159610), (44, 579805), (55, 463844), (61, 418220), (110, 231922), (122, 209110), (220, 115961), (244, 104555), (305, 83644), (610, 41822), (671, 38020), (1220, 20911), (1342, 19010), (1901, 13420), (2684, 9505), (3355, 7604), (3802, 6710)]