13219060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 29937600

約数和(自身を除く): 16718540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 809, 817, 860, 1618, 1634, 3236, 3268, 4045, 4085, 8090, 8170, 15371, 16180, 16340, 30742, 34787, 61484, 69574, 76855, 139148, 153710, 173935, 307420, 347870, 660953, 695740, 1321906, 2643812, 3304765, 6609530, 13219060]

約数ペア:

[(1, 13219060), (2, 6609530), (4, 3304765), (5, 2643812), (10, 1321906), (19, 695740), (20, 660953), (38, 347870), (43, 307420), (76, 173935), (86, 153710), (95, 139148), (172, 76855), (190, 69574), (215, 61484), (380, 34787), (430, 30742), (809, 16340), (817, 16180), (860, 15371), (1618, 8170), (1634, 8090), (3236, 4085), (3268, 4045)]