20006640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:807

約数の個数: 120

約数和(自身を含む): 69096768

約数和(自身を除く): 49090128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 751, 888, 1110, 1332, 1480, 1502, 1665, 1776, 2220, 2253, 2664, 2960, 3004, 3330, 3755, 4440, 4506, 5328, 6008, 6660, 6759, 7510, 8880, 9012, 11265, 12016, 13320, 13518, 15020, 18024, 22530, 26640, 27036, 27787, 30040, 33795, 36048, 45060, 54072, 55574, 60080, 67590, 83361, 90120, 108144, 111148, 135180, 138935, 166722, 180240, 222296, 250083, 270360, 277870, 333444, 416805, 444592, 500166, 540720, 555740, 666888, 833610, 1000332, 1111480, 1250415, 1333776, 1667220, 2000664, 2222960, 2500830, 3334440, 4001328, 5001660, 6668880, 10003320, 20006640]

約数ペア:

[(1, 20006640), (2, 10003320), (3, 6668880), (4, 5001660), (5, 4001328), (6, 3334440), (8, 2500830), (9, 2222960), (10, 2000664), (12, 1667220), (15, 1333776), (16, 1250415), (18, 1111480), (20, 1000332), (24, 833610), (30, 666888), (36, 555740), (37, 540720), (40, 500166), (45, 444592), (48, 416805), (60, 333444), (72, 277870), (74, 270360), (80, 250083), (90, 222296), (111, 180240), (120, 166722), (144, 138935), (148, 135180), (180, 111148), (185, 108144), (222, 90120), (240, 83361), (296, 67590), (333, 60080), (360, 55574), (370, 54072), (444, 45060), (555, 36048), (592, 33795), (666, 30040), (720, 27787), (740, 27036), (751, 26640), (888, 22530), (1110, 18024), (1332, 15020), (1480, 13518), (1502, 13320), (1665, 12016), (1776, 11265), (2220, 9012), (2253, 8880), (2664, 7510), (2960, 6759), (3004, 6660), (3330, 6008), (3755, 5328), (4440, 4506)]