664307560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{15923}}^1$

素因数の和:16090

約数の個数: 64

約数和(自身を含む): 1719792000

約数和(自身を除く): 1055484440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 2086, 2980, 4172, 5215, 5960, 8344, 10430, 15923, 20860, 31846, 41720, 63692, 79615, 111461, 127384, 159230, 222922, 318460, 445844, 557305, 636920, 891688, 1114610, 2229220, 2372527, 4458440, 4745054, 9490108, 11862635, 16607689, 18980216, 23725270, 33215378, 47450540, 66430756, 83038445, 94901080, 132861512, 166076890, 332153780, 664307560]

約数ペア:

[(1, 664307560), (2, 332153780), (4, 166076890), (5, 132861512), (7, 94901080), (8, 83038445), (10, 66430756), (14, 47450540), (20, 33215378), (28, 23725270), (35, 18980216), (40, 16607689), (56, 11862635), (70, 9490108), (140, 4745054), (149, 4458440), (280, 2372527), (298, 2229220), (596, 1114610), (745, 891688), (1043, 636920), (1192, 557305), (1490, 445844), (2086, 318460), (2980, 222922), (4172, 159230), (5215, 127384), (5960, 111461), (8344, 79615), (10430, 63692), (15923, 41720), (20860, 31846)]