802120540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{6871}}^1$

素因数の和:7342

約数の個数: 48

約数和(自身を含む): 1818331200

約数和(自身を除く): 1016210660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 449, 898, 1796, 2245, 4490, 5837, 6871, 8980, 11674, 13742, 23348, 27484, 29185, 34355, 58370, 68710, 89323, 116740, 137420, 178646, 357292, 446615, 893230, 1786460, 3085079, 6170158, 12340316, 15425395, 30850790, 40106027, 61701580, 80212054, 160424108, 200530135, 401060270, 802120540]

約数ペア:

[(1, 802120540), (2, 401060270), (4, 200530135), (5, 160424108), (10, 80212054), (13, 61701580), (20, 40106027), (26, 30850790), (52, 15425395), (65, 12340316), (130, 6170158), (260, 3085079), (449, 1786460), (898, 893230), (1796, 446615), (2245, 357292), (4490, 178646), (5837, 137420), (6871, 116740), (8980, 89323), (11674, 68710), (13742, 58370), (23348, 34355), (27484, 29185)]