13807840

素因数分解:

$2^5\times 5^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:635

約数の個数: 48

約数和(自身を含む): 32855760

約数和(自身を除く): 19047920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 211, 409, 422, 818, 844, 1055, 1636, 1688, 2045, 2110, 3272, 3376, 4090, 4220, 6544, 6752, 8180, 8440, 13088, 16360, 16880, 32720, 33760, 65440, 86299, 172598, 345196, 431495, 690392, 862990, 1380784, 1725980, 2761568, 3451960, 6903920, 13807840]

約数ペア:

[(1, 13807840), (2, 6903920), (4, 3451960), (5, 2761568), (8, 1725980), (10, 1380784), (16, 862990), (20, 690392), (32, 431495), (40, 345196), (80, 172598), (160, 86299), (211, 65440), (409, 33760), (422, 32720), (818, 16880), (844, 16360), (1055, 13088), (1636, 8440), (1688, 8180), (2045, 6752), (2110, 6544), (3272, 4220), (3376, 4090)]