4920020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 11950848

約数和(自身を除く): 7030828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 311, 452, 565, 622, 791, 1130, 1244, 1555, 1582, 2177, 2260, 3110, 3164, 3955, 4354, 6220, 7910, 8708, 10885, 15820, 21770, 35143, 43540, 70286, 140572, 175715, 246001, 351430, 492002, 702860, 984004, 1230005, 2460010, 4920020]

約数ペア:

[(1, 4920020), (2, 2460010), (4, 1230005), (5, 984004), (7, 702860), (10, 492002), (14, 351430), (20, 246001), (28, 175715), (35, 140572), (70, 70286), (113, 43540), (140, 35143), (226, 21770), (311, 15820), (452, 10885), (565, 8708), (622, 7910), (791, 6220), (1130, 4354), (1244, 3955), (1555, 3164), (1582, 3110), (2177, 2260)]