39898005

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2857}}^1$

素因数の和:2898

約数の個数: 48

約数和(自身を含む): 78194880

約数和(自身を除く): 38296875

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2793, 2857, 4655, 8571, 13965, 14285, 19999, 42855, 54283, 59997, 99995, 139993, 162849, 271415, 299985, 379981, 419979, 699965, 814245, 1139943, 1899905, 2099895, 2659867, 5699715, 7979601, 13299335, 39898005]

約数ペア:

[(1, 39898005), (3, 13299335), (5, 7979601), (7, 5699715), (15, 2659867), (19, 2099895), (21, 1899905), (35, 1139943), (49, 814245), (57, 699965), (95, 419979), (105, 379981), (133, 299985), (147, 271415), (245, 162849), (285, 139993), (399, 99995), (665, 59997), (735, 54283), (931, 42855), (1995, 19999), (2793, 14285), (2857, 13965), (4655, 8571)]