1240388520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{17791}}^1$

素因数の和:17895

約数の個数: 128

約数和(自身を含む): 4304240640

約数和(自身を除く): 3063852120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 83, 84, 105, 120, 140, 166, 168, 210, 249, 280, 332, 415, 420, 498, 581, 664, 830, 840, 996, 1162, 1245, 1660, 1743, 1992, 2324, 2490, 2905, 3320, 3486, 4648, 4980, 5810, 6972, 8715, 9960, 11620, 13944, 17430, 17791, 23240, 34860, 35582, 53373, 69720, 71164, 88955, 106746, 124537, 142328, 177910, 213492, 249074, 266865, 355820, 373611, 426984, 498148, 533730, 622685, 711640, 747222, 996296, 1067460, 1245370, 1476653, 1494444, 1868055, 2134920, 2490740, 2953306, 2988888, 3736110, 4429959, 4981480, 5906612, 7383265, 7472220, 8859918, 10336571, 11813224, 14766530, 14944440, 17719836, 20673142, 22149795, 29533060, 31009713, 35439672, 41346284, 44299590, 51682855, 59066120, 62019426, 82692568, 88599180, 103365710, 124038852, 155048565, 177198360, 206731420, 248077704, 310097130, 413462840, 620194260, 1240388520]

約数ペア:

[(1, 1240388520), (2, 620194260), (3, 413462840), (4, 310097130), (5, 248077704), (6, 206731420), (7, 177198360), (8, 155048565), (10, 124038852), (12, 103365710), (14, 88599180), (15, 82692568), (20, 62019426), (21, 59066120), (24, 51682855), (28, 44299590), (30, 41346284), (35, 35439672), (40, 31009713), (42, 29533060), (56, 22149795), (60, 20673142), (70, 17719836), (83, 14944440), (84, 14766530), (105, 11813224), (120, 10336571), (140, 8859918), (166, 7472220), (168, 7383265), (210, 5906612), (249, 4981480), (280, 4429959), (332, 3736110), (415, 2988888), (420, 2953306), (498, 2490740), (581, 2134920), (664, 1868055), (830, 1494444), (840, 1476653), (996, 1245370), (1162, 1067460), (1245, 996296), (1660, 747222), (1743, 711640), (1992, 622685), (2324, 533730), (2490, 498148), (2905, 426984), (3320, 373611), (3486, 355820), (4648, 266865), (4980, 249074), (5810, 213492), (6972, 177910), (8715, 142328), (9960, 124537), (11620, 106746), (13944, 88955), (17430, 71164), (17791, 69720), (23240, 53373), (34860, 35582)]