18098990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19889}}^1$

素因数の和:19916

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 21999250

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 19889, 39778, 99445, 139223, 198890, 258557, 278446, 517114, 696115, 1292785, 1392230, 1809899, 2585570, 3619798, 9049495, 18098990]

約数ペア:

[(1, 18098990), (2, 9049495), (5, 3619798), (7, 2585570), (10, 1809899), (13, 1392230), (14, 1292785), (26, 696115), (35, 517114), (65, 278446), (70, 258557), (91, 198890), (130, 139223), (182, 99445), (455, 39778), (910, 19889)]