8739620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 19588800

約数和(自身を除く): 10849180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 211, 218, 380, 422, 436, 545, 844, 1055, 1090, 2071, 2110, 2180, 4009, 4142, 4220, 8018, 8284, 10355, 16036, 20045, 20710, 22999, 40090, 41420, 45998, 80180, 91996, 114995, 229990, 436981, 459980, 873962, 1747924, 2184905, 4369810, 8739620]

約数ペア:

[(1, 8739620), (2, 4369810), (4, 2184905), (5, 1747924), (10, 873962), (19, 459980), (20, 436981), (38, 229990), (76, 114995), (95, 91996), (109, 80180), (190, 45998), (211, 41420), (218, 40090), (380, 22999), (422, 20710), (436, 20045), (545, 16036), (844, 10355), (1055, 8284), (1090, 8018), (2071, 4220), (2110, 4142), (2180, 4009)]