28134340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 64033200

約数和(自身を除く): 35898860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 449, 482, 898, 964, 1205, 1796, 2245, 2410, 3133, 4490, 4820, 5837, 6266, 8980, 11674, 12532, 15665, 23348, 29185, 31330, 58370, 62660, 108209, 116740, 216418, 432836, 541045, 1082090, 1406717, 2164180, 2813434, 5626868, 7033585, 14067170, 28134340]

約数ペア:

[(1, 28134340), (2, 14067170), (4, 7033585), (5, 5626868), (10, 2813434), (13, 2164180), (20, 1406717), (26, 1082090), (52, 541045), (65, 432836), (130, 216418), (241, 116740), (260, 108209), (449, 62660), (482, 58370), (898, 31330), (964, 29185), (1205, 23348), (1796, 15665), (2245, 12532), (2410, 11674), (3133, 8980), (4490, 6266), (4820, 5837)]