21960540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:652

約数の個数: 144

約数和(自身を含む): 78886080

約数和(自身を除く): 56925540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 601, 609, 630, 812, 870, 1015, 1044, 1202, 1218, 1260, 1305, 1740, 1803, 1827, 2030, 2404, 2436, 2610, 3005, 3045, 3606, 3654, 4060, 4207, 5220, 5409, 6010, 6090, 7212, 7308, 8414, 9015, 9135, 10818, 12020, 12180, 12621, 16828, 17429, 18030, 18270, 21035, 21636, 25242, 27045, 34858, 36060, 36540, 37863, 42070, 50484, 52287, 54090, 63105, 69716, 75726, 84140, 87145, 104574, 108180, 122003, 126210, 151452, 156861, 174290, 189315, 209148, 244006, 252420, 261435, 313722, 348580, 366009, 378630, 488012, 522870, 610015, 627444, 732018, 757260, 784305, 1045740, 1098027, 1220030, 1464036, 1568610, 1830045, 2196054, 2440060, 3137220, 3660090, 4392108, 5490135, 7320180, 10980270, 21960540]

約数ペア:

[(1, 21960540), (2, 10980270), (3, 7320180), (4, 5490135), (5, 4392108), (6, 3660090), (7, 3137220), (9, 2440060), (10, 2196054), (12, 1830045), (14, 1568610), (15, 1464036), (18, 1220030), (20, 1098027), (21, 1045740), (28, 784305), (29, 757260), (30, 732018), (35, 627444), (36, 610015), (42, 522870), (45, 488012), (58, 378630), (60, 366009), (63, 348580), (70, 313722), (84, 261435), (87, 252420), (90, 244006), (105, 209148), (116, 189315), (126, 174290), (140, 156861), (145, 151452), (174, 126210), (180, 122003), (203, 108180), (210, 104574), (252, 87145), (261, 84140), (290, 75726), (315, 69716), (348, 63105), (406, 54090), (420, 52287), (435, 50484), (522, 42070), (580, 37863), (601, 36540), (609, 36060), (630, 34858), (812, 27045), (870, 25242), (1015, 21636), (1044, 21035), (1202, 18270), (1218, 18030), (1260, 17429), (1305, 16828), (1740, 12621), (1803, 12180), (1827, 12020), (2030, 10818), (2404, 9135), (2436, 9015), (2610, 8414), (3005, 7308), (3045, 7212), (3606, 6090), (3654, 6010), (4060, 5409), (4207, 5220)]