20353130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:663

約数の個数: 48

約数和(自身を含む): 43276680

約数和(自身を除く): 22923550

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 365, 490, 511, 569, 730, 1022, 1138, 2555, 2845, 3577, 3983, 5110, 5690, 7154, 7966, 17885, 19915, 27881, 35770, 39830, 41537, 55762, 83074, 139405, 207685, 278810, 290759, 415370, 581518, 1453795, 2035313, 2907590, 4070626, 10176565, 20353130]

約数ペア:

[(1, 20353130), (2, 10176565), (5, 4070626), (7, 2907590), (10, 2035313), (14, 1453795), (35, 581518), (49, 415370), (70, 290759), (73, 278810), (98, 207685), (146, 139405), (245, 83074), (365, 55762), (490, 41537), (511, 39830), (569, 35770), (730, 27881), (1022, 19915), (1138, 17885), (2555, 7966), (2845, 7154), (3577, 5690), (3983, 5110)]