2117220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^2$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 6871872

約数和(自身を除く): 4754652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1988, 2130, 2485, 2982, 4260, 4970, 5041, 5964, 7455, 9940, 10082, 14910, 15123, 20164, 25205, 29820, 30246, 35287, 50410, 60492, 70574, 75615, 100820, 105861, 141148, 151230, 176435, 211722, 302460, 352870, 423444, 529305, 705740, 1058610, 2117220]

約数ペア:

[(1, 2117220), (2, 1058610), (3, 705740), (4, 529305), (5, 423444), (6, 352870), (7, 302460), (10, 211722), (12, 176435), (14, 151230), (15, 141148), (20, 105861), (21, 100820), (28, 75615), (30, 70574), (35, 60492), (42, 50410), (60, 35287), (70, 30246), (71, 29820), (84, 25205), (105, 20164), (140, 15123), (142, 14910), (210, 10082), (213, 9940), (284, 7455), (355, 5964), (420, 5041), (426, 4970), (497, 4260), (710, 2982), (852, 2485), (994, 2130), (1065, 1988), (1420, 1491)]