81720343390

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23825173}}^1$

素因数の和:23825201

約数の個数: 32

約数和(自身を含む): 171541252800

約数和(自身を除く): 89820909410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 23825173, 47650346, 119125865, 166776211, 238251730, 333552422, 833881055, 1167433477, 1667762110, 2334866954, 5837167385, 8172034339, 11674334770, 16344068678, 40860171695, 81720343390]

約数ペア:

[(1, 81720343390), (2, 40860171695), (5, 16344068678), (7, 11674334770), (10, 8172034339), (14, 5837167385), (35, 2334866954), (49, 1667762110), (70, 1167433477), (98, 833881055), (245, 333552422), (343, 238251730), (490, 166776211), (686, 119125865), (1715, 47650346), (3430, 23825173)]