16719640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 43349760

約数和(自身を除く): 26630120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 283, 422, 566, 844, 1055, 1132, 1415, 1477, 1688, 1981, 2110, 2264, 2830, 2954, 3962, 4220, 5660, 5908, 7385, 7924, 8440, 9905, 11320, 11816, 14770, 15848, 19810, 29540, 39620, 59080, 59713, 79240, 119426, 238852, 298565, 417991, 477704, 597130, 835982, 1194260, 1671964, 2089955, 2388520, 3343928, 4179910, 8359820, 16719640]

約数ペア:

[(1, 16719640), (2, 8359820), (4, 4179910), (5, 3343928), (7, 2388520), (8, 2089955), (10, 1671964), (14, 1194260), (20, 835982), (28, 597130), (35, 477704), (40, 417991), (56, 298565), (70, 238852), (140, 119426), (211, 79240), (280, 59713), (283, 59080), (422, 39620), (566, 29540), (844, 19810), (1055, 15848), (1132, 14770), (1415, 11816), (1477, 11320), (1688, 9905), (1981, 8440), (2110, 7924), (2264, 7385), (2830, 5908), (2954, 5660), (3962, 4220)]