21770440

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1483}}^1$

素因数の和:1861

約数の個数: 32

約数和(自身を含む): 49150080

約数和(自身を除く): 27379640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1468, 1483, 1835, 2936, 2966, 3670, 5932, 7340, 7415, 11864, 14680, 14830, 29660, 59320, 544261, 1088522, 2177044, 2721305, 4354088, 5442610, 10885220, 21770440]

約数ペア:

[(1, 21770440), (2, 10885220), (4, 5442610), (5, 4354088), (8, 2721305), (10, 2177044), (20, 1088522), (40, 544261), (367, 59320), (734, 29660), (1468, 14830), (1483, 14680), (1835, 11864), (2936, 7415), (2966, 7340), (3670, 5932)]