28740530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31583}}^1$

素因数の和:31610

約数の個数: 32

約数和(自身を含む): 63673344

約数和(自身を除く): 34932814

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 31583, 63166, 157915, 221081, 315830, 410579, 442162, 821158, 1105405, 2052895, 2210810, 2874053, 4105790, 5748106, 14370265, 28740530]

約数ペア:

[(1, 28740530), (2, 14370265), (5, 5748106), (7, 4105790), (10, 2874053), (13, 2210810), (14, 2052895), (26, 1105405), (35, 821158), (65, 442162), (70, 410579), (91, 315830), (130, 221081), (182, 157915), (455, 63166), (910, 31583)]