20949360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2129}}^1$

素因数の和:2186

約数の個数: 80

約数和(自身を含む): 66558240

約数和(自身を除く): 45608880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2129, 2460, 3280, 4258, 4920, 6387, 8516, 9840, 10645, 12774, 17032, 21290, 25548, 31935, 34064, 42580, 51096, 63870, 85160, 87289, 102192, 127740, 170320, 174578, 255480, 261867, 349156, 436445, 510960, 523734, 698312, 872890, 1047468, 1309335, 1396624, 1745780, 2094936, 2618670, 3491560, 4189872, 5237340, 6983120, 10474680, 20949360]

約数ペア:

[(1, 20949360), (2, 10474680), (3, 6983120), (4, 5237340), (5, 4189872), (6, 3491560), (8, 2618670), (10, 2094936), (12, 1745780), (15, 1396624), (16, 1309335), (20, 1047468), (24, 872890), (30, 698312), (40, 523734), (41, 510960), (48, 436445), (60, 349156), (80, 261867), (82, 255480), (120, 174578), (123, 170320), (164, 127740), (205, 102192), (240, 87289), (246, 85160), (328, 63870), (410, 51096), (492, 42580), (615, 34064), (656, 31935), (820, 25548), (984, 21290), (1230, 17032), (1640, 12774), (1968, 10645), (2129, 9840), (2460, 8516), (3280, 6387), (4258, 4920)]