278320952

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{863}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 644474880

約数和(自身を除く): 366153928

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 443, 728, 863, 886, 1726, 1772, 3101, 3452, 3544, 5759, 6041, 6202, 6904, 11219, 11518, 12082, 12404, 22438, 23036, 24164, 24808, 40313, 44876, 46072, 48328, 78533, 80626, 89752, 157066, 161252, 314132, 322504, 382309, 628264, 764618, 1529236, 2676163, 3058472, 4970017, 5352326, 9940034, 10704652, 19880068, 21409304, 34790119, 39760136, 69580238, 139160476, 278320952]

約数ペア:

[(1, 278320952), (2, 139160476), (4, 69580238), (7, 39760136), (8, 34790119), (13, 21409304), (14, 19880068), (26, 10704652), (28, 9940034), (52, 5352326), (56, 4970017), (91, 3058472), (104, 2676163), (182, 1529236), (364, 764618), (443, 628264), (728, 382309), (863, 322504), (886, 314132), (1726, 161252), (1772, 157066), (3101, 89752), (3452, 80626), (3544, 78533), (5759, 48328), (6041, 46072), (6202, 44876), (6904, 40313), (11219, 24808), (11518, 24164), (12082, 23036), (12404, 22438)]