20544720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1747}}^1$

素因数の和:1777

約数の個数: 120

約数和(自身を含む): 74129184

約数和(自身を除く): 53584464

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1747, 1960, 2352, 2940, 3494, 3920, 5241, 5880, 6988, 8735, 10482, 11760, 12229, 13976, 17470, 20964, 24458, 26205, 27952, 34940, 36687, 41928, 48916, 52410, 61145, 69880, 73374, 83856, 85603, 97832, 104820, 122290, 139760, 146748, 171206, 183435, 195664, 209640, 244580, 256809, 293496, 342412, 366870, 419280, 428015, 489160, 513618, 586992, 684824, 733740, 856030, 978320, 1027236, 1284045, 1369648, 1467480, 1712060, 2054472, 2568090, 2934960, 3424120, 4108944, 5136180, 6848240, 10272360, 20544720]

約数ペア:

[(1, 20544720), (2, 10272360), (3, 6848240), (4, 5136180), (5, 4108944), (6, 3424120), (7, 2934960), (8, 2568090), (10, 2054472), (12, 1712060), (14, 1467480), (15, 1369648), (16, 1284045), (20, 1027236), (21, 978320), (24, 856030), (28, 733740), (30, 684824), (35, 586992), (40, 513618), (42, 489160), (48, 428015), (49, 419280), (56, 366870), (60, 342412), (70, 293496), (80, 256809), (84, 244580), (98, 209640), (105, 195664), (112, 183435), (120, 171206), (140, 146748), (147, 139760), (168, 122290), (196, 104820), (210, 97832), (240, 85603), (245, 83856), (280, 73374), (294, 69880), (336, 61145), (392, 52410), (420, 48916), (490, 41928), (560, 36687), (588, 34940), (735, 27952), (784, 26205), (840, 24458), (980, 20964), (1176, 17470), (1470, 13976), (1680, 12229), (1747, 11760), (1960, 10482), (2352, 8735), (2940, 6988), (3494, 5880), (3920, 5241)]