1242768520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{2579}}^1$

素因数の和:4318

約数の個数: 64

約数和(自身を含む): 3198787200

約数和(自身を除く): 1956018680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1721, 2579, 3442, 5158, 6884, 8605, 10316, 12047, 12895, 13768, 17210, 18053, 20632, 24094, 25790, 34420, 36106, 48188, 51580, 60235, 68840, 72212, 90265, 96376, 103160, 120470, 144424, 180530, 240940, 361060, 481880, 722120, 4438459, 8876918, 17753836, 22192295, 31069213, 35507672, 44384590, 62138426, 88769180, 124276852, 155346065, 177538360, 248553704, 310692130, 621384260, 1242768520]

約数ペア:

[(1, 1242768520), (2, 621384260), (4, 310692130), (5, 248553704), (7, 177538360), (8, 155346065), (10, 124276852), (14, 88769180), (20, 62138426), (28, 44384590), (35, 35507672), (40, 31069213), (56, 22192295), (70, 17753836), (140, 8876918), (280, 4438459), (1721, 722120), (2579, 481880), (3442, 361060), (5158, 240940), (6884, 180530), (8605, 144424), (10316, 120470), (12047, 103160), (12895, 96376), (13768, 90265), (17210, 72212), (18053, 68840), (20632, 60235), (24094, 51580), (25790, 48188), (34420, 36106)]