20739960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1157

約数の個数: 96

約数和(自身を含む): 68739840

約数和(自身を除く): 47999880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 53, 60, 72, 90, 106, 120, 159, 180, 212, 265, 318, 360, 424, 477, 530, 636, 795, 954, 1060, 1087, 1272, 1590, 1908, 2120, 2174, 2385, 3180, 3261, 3816, 4348, 4770, 5435, 6360, 6522, 8696, 9540, 9783, 10870, 13044, 16305, 19080, 19566, 21740, 26088, 32610, 39132, 43480, 48915, 57611, 65220, 78264, 97830, 115222, 130440, 172833, 195660, 230444, 288055, 345666, 391320, 460888, 518499, 576110, 691332, 864165, 1036998, 1152220, 1382664, 1728330, 2073996, 2304440, 2592495, 3456660, 4147992, 5184990, 6913320, 10369980, 20739960]

約数ペア:

[(1, 20739960), (2, 10369980), (3, 6913320), (4, 5184990), (5, 4147992), (6, 3456660), (8, 2592495), (9, 2304440), (10, 2073996), (12, 1728330), (15, 1382664), (18, 1152220), (20, 1036998), (24, 864165), (30, 691332), (36, 576110), (40, 518499), (45, 460888), (53, 391320), (60, 345666), (72, 288055), (90, 230444), (106, 195660), (120, 172833), (159, 130440), (180, 115222), (212, 97830), (265, 78264), (318, 65220), (360, 57611), (424, 48915), (477, 43480), (530, 39132), (636, 32610), (795, 26088), (954, 21740), (1060, 19566), (1087, 19080), (1272, 16305), (1590, 13044), (1908, 10870), (2120, 9783), (2174, 9540), (2385, 8696), (3180, 6522), (3261, 6360), (3816, 5435), (4348, 4770)]