81405496

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{449}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 155034000

約数和(自身を除く): 73628504

約数列:

[1, 2, 4, 8, 131, 173, 262, 346, 449, 524, 692, 898, 1048, 1384, 1796, 3592, 22663, 45326, 58819, 77677, 90652, 117638, 155354, 181304, 235276, 310708, 470552, 621416, 10175687, 20351374, 40702748, 81405496]

約数ペア:

[(1, 81405496), (2, 40702748), (4, 20351374), (8, 10175687), (131, 621416), (173, 470552), (262, 310708), (346, 235276), (449, 181304), (524, 155354), (692, 117638), (898, 90652), (1048, 77677), (1384, 58819), (1796, 45326), (3592, 22663)]