1212680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 64

約数和(自身を含む): 3214080

約数和(自身を除く): 2001400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 71, 122, 140, 142, 244, 280, 284, 305, 355, 427, 488, 497, 568, 610, 710, 854, 994, 1220, 1420, 1708, 1988, 2135, 2440, 2485, 2840, 3416, 3976, 4270, 4331, 4970, 8540, 8662, 9940, 17080, 17324, 19880, 21655, 30317, 34648, 43310, 60634, 86620, 121268, 151585, 173240, 242536, 303170, 606340, 1212680]

約数ペア:

[(1, 1212680), (2, 606340), (4, 303170), (5, 242536), (7, 173240), (8, 151585), (10, 121268), (14, 86620), (20, 60634), (28, 43310), (35, 34648), (40, 30317), (56, 21655), (61, 19880), (70, 17324), (71, 17080), (122, 9940), (140, 8662), (142, 8540), (244, 4970), (280, 4331), (284, 4270), (305, 3976), (355, 3416), (427, 2840), (488, 2485), (497, 2440), (568, 2135), (610, 1988), (710, 1708), (854, 1420), (994, 1220)]