1678740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{571}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 5477472

約数和(自身を除く): 3798732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 571, 588, 735, 980, 1142, 1470, 1713, 2284, 2855, 2940, 3426, 3997, 5710, 6852, 7994, 8565, 11420, 11991, 15988, 17130, 19985, 23982, 27979, 34260, 39970, 47964, 55958, 59955, 79940, 83937, 111916, 119910, 139895, 167874, 239820, 279790, 335748, 419685, 559580, 839370, 1678740]

約数ペア:

[(1, 1678740), (2, 839370), (3, 559580), (4, 419685), (5, 335748), (6, 279790), (7, 239820), (10, 167874), (12, 139895), (14, 119910), (15, 111916), (20, 83937), (21, 79940), (28, 59955), (30, 55958), (35, 47964), (42, 39970), (49, 34260), (60, 27979), (70, 23982), (84, 19985), (98, 17130), (105, 15988), (140, 11991), (147, 11420), (196, 8565), (210, 7994), (245, 6852), (294, 5710), (420, 3997), (490, 3426), (571, 2940), (588, 2855), (735, 2284), (980, 1713), (1142, 1470)]