2020163240

素因数分解:

$2^3\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{23567}}^1$

素因数の和:25721

約数の個数: 32

約数和(自身を含む): 4547681280

約数和(自身を除く): 2527518040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2143, 4286, 8572, 10715, 17144, 21430, 23567, 42860, 47134, 85720, 94268, 117835, 188536, 235670, 471340, 942680, 50504081, 101008162, 202016324, 252520405, 404032648, 505040810, 1010081620, 2020163240]

約数ペア:

[(1, 2020163240), (2, 1010081620), (4, 505040810), (5, 404032648), (8, 252520405), (10, 202016324), (20, 101008162), (40, 50504081), (2143, 942680), (4286, 471340), (8572, 235670), (10715, 188536), (17144, 117835), (21430, 94268), (23567, 85720), (42860, 47134)]