80538770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{6961}}^1$

素因数の和:7070

約数の個数: 32

約数和(自身を含む): 157898160

約数和(自身を除く): 77359390

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 5785, 6961, 11570, 13922, 34805, 69610, 90493, 180986, 452465, 619529, 904930, 1239058, 3097645, 6195290, 8053877, 16107754, 40269385, 80538770]

約数ペア:

[(1, 80538770), (2, 40269385), (5, 16107754), (10, 8053877), (13, 6195290), (26, 3097645), (65, 1239058), (89, 904930), (130, 619529), (178, 452465), (445, 180986), (890, 90493), (1157, 69610), (2314, 34805), (5785, 13922), (6961, 11570)]