28185780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9587}}^1$

素因数の和:9613

約数の個数: 72

約数和(自身を含む): 91814688

約数和(自身を除く): 63628908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9587, 19174, 28761, 38348, 47935, 57522, 67109, 95870, 115044, 134218, 143805, 191740, 201327, 268436, 287610, 335545, 402654, 469763, 575220, 671090, 805308, 939526, 1006635, 1342180, 1409289, 1879052, 2013270, 2348815, 2818578, 4026540, 4697630, 5637156, 7046445, 9395260, 14092890, 28185780]

約数ペア:

[(1, 28185780), (2, 14092890), (3, 9395260), (4, 7046445), (5, 5637156), (6, 4697630), (7, 4026540), (10, 2818578), (12, 2348815), (14, 2013270), (15, 1879052), (20, 1409289), (21, 1342180), (28, 1006635), (30, 939526), (35, 805308), (42, 671090), (49, 575220), (60, 469763), (70, 402654), (84, 335545), (98, 287610), (105, 268436), (140, 201327), (147, 191740), (196, 143805), (210, 134218), (245, 115044), (294, 95870), (420, 67109), (490, 57522), (588, 47935), (735, 38348), (980, 28761), (1470, 19174), (2940, 9587)]