81316904

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{281}}^1\times {\mathrm{593}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 155782440

約数和(自身を除く): 74465536

約数列:

[1, 2, 4, 8, 61, 122, 244, 281, 488, 562, 593, 1124, 1186, 2248, 2372, 4744, 17141, 34282, 36173, 68564, 72346, 137128, 144692, 166633, 289384, 333266, 666532, 1333064, 10164613, 20329226, 40658452, 81316904]

約数ペア:

[(1, 81316904), (2, 40658452), (4, 20329226), (8, 10164613), (61, 1333064), (122, 666532), (244, 333266), (281, 289384), (488, 166633), (562, 144692), (593, 137128), (1124, 72346), (1186, 68564), (2248, 36173), (2372, 34282), (4744, 17141)]