20974730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2011}}^1$

素因数の和:2174

約数の個数: 32

約数和(自身を含む): 43459200

約数和(自身を除く): 22484470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2011, 2086, 4022, 5215, 10055, 10430, 14077, 20110, 28154, 70385, 140770, 299639, 599278, 1498195, 2097473, 2996390, 4194946, 10487365, 20974730]

約数ペア:

[(1, 20974730), (2, 10487365), (5, 4194946), (7, 2996390), (10, 2097473), (14, 1498195), (35, 599278), (70, 299639), (149, 140770), (298, 70385), (745, 28154), (1043, 20110), (1490, 14077), (2011, 10430), (2086, 10055), (4022, 5215)]