20708740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3463}}^1$

素因数の和:3508

約数の個数: 48

約数和(自身を含む): 48883968

約数和(自身を除く): 28175228

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3463, 5980, 6926, 13852, 17315, 34630, 45019, 69260, 79649, 90038, 159298, 180076, 225095, 318596, 398245, 450190, 796490, 900380, 1035437, 1592980, 2070874, 4141748, 5177185, 10354370, 20708740]

約数ペア:

[(1, 20708740), (2, 10354370), (4, 5177185), (5, 4141748), (10, 2070874), (13, 1592980), (20, 1035437), (23, 900380), (26, 796490), (46, 450190), (52, 398245), (65, 318596), (92, 225095), (115, 180076), (130, 159298), (230, 90038), (260, 79649), (299, 69260), (460, 45019), (598, 34630), (1196, 17315), (1495, 13852), (2990, 6926), (3463, 5980)]