20438790476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{359}}^1\times {\mathrm{9689}}^1$

素因数の和:10178

約数の個数: 48

約数和(自身を含む): 38972404800

約数和(自身を除く): 18533614324

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 359, 452, 718, 1436, 1469, 2938, 4667, 5876, 9334, 9689, 18668, 19378, 38756, 40567, 81134, 125957, 162268, 251914, 503828, 527371, 1054742, 1094857, 2109484, 2189714, 3478351, 4379428, 6956702, 13913404, 14233141, 28466282, 45218563, 56932564, 90437126, 180874252, 393053663, 786107326, 1572214652, 5109697619, 10219395238, 20438790476]

約数ペア:

[(1, 20438790476), (2, 10219395238), (4, 5109697619), (13, 1572214652), (26, 786107326), (52, 393053663), (113, 180874252), (226, 90437126), (359, 56932564), (452, 45218563), (718, 28466282), (1436, 14233141), (1469, 13913404), (2938, 6956702), (4667, 4379428), (5876, 3478351), (9334, 2189714), (9689, 2109484), (18668, 1094857), (19378, 1054742), (38756, 527371), (40567, 503828), (81134, 251914), (125957, 162268)]