81671460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104707}}^1$

素因数の和:104732

約数の個数: 48

約数和(自身を含む): 246273216

約数和(自身を除く): 164601756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104707, 209414, 314121, 418828, 523535, 628242, 1047070, 1256484, 1361191, 1570605, 2094140, 2722382, 3141210, 4083573, 5444764, 6282420, 6805955, 8167146, 13611910, 16334292, 20417865, 27223820, 40835730, 81671460]

約数ペア:

[(1, 81671460), (2, 40835730), (3, 27223820), (4, 20417865), (5, 16334292), (6, 13611910), (10, 8167146), (12, 6805955), (13, 6282420), (15, 5444764), (20, 4083573), (26, 3141210), (30, 2722382), (39, 2094140), (52, 1570605), (60, 1361191), (65, 1256484), (78, 1047070), (130, 628242), (156, 523535), (195, 418828), (260, 314121), (390, 209414), (780, 104707)]