8208130640

素因数分解:

$2^4\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{51481}}^1$

素因数の和:53487

約数の個数: 40

約数和(自身を含む): 19093850088

約数和(自身を除く): 10885719448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1993, 3986, 7972, 9965, 15944, 19930, 31888, 39860, 51481, 79720, 102962, 159440, 205924, 257405, 411848, 514810, 823696, 1029620, 2059240, 4118480, 102601633, 205203266, 410406532, 513008165, 820813064, 1026016330, 1641626128, 2052032660, 4104065320, 8208130640]

約数ペア:

[(1, 8208130640), (2, 4104065320), (4, 2052032660), (5, 1641626128), (8, 1026016330), (10, 820813064), (16, 513008165), (20, 410406532), (40, 205203266), (80, 102601633), (1993, 4118480), (3986, 2059240), (7972, 1029620), (9965, 823696), (15944, 514810), (19930, 411848), (31888, 257405), (39860, 205924), (51481, 159440), (79720, 102962)]