31125780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{3529}}^1$

素因数の和:3558

約数の個数: 108

約数和(自身を含む): 109860660

約数和(自身を除く): 78734880

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 3529, 4410, 7058, 8820, 10587, 14116, 17645, 21174, 24703, 31761, 35290, 42348, 49406, 52935, 63522, 70580, 74109, 98812, 105870, 123515, 127044, 148218, 158805, 172921, 211740, 222327, 247030, 296436, 317610, 345842, 370545, 444654, 494060, 518763, 635220, 691684, 741090, 864605, 889308, 1037526, 1111635, 1482180, 1556289, 1729210, 2075052, 2223270, 2593815, 3112578, 3458420, 4446540, 5187630, 6225156, 7781445, 10375260, 15562890, 31125780]

約数ペア:

[(1, 31125780), (2, 15562890), (3, 10375260), (4, 7781445), (5, 6225156), (6, 5187630), (7, 4446540), (9, 3458420), (10, 3112578), (12, 2593815), (14, 2223270), (15, 2075052), (18, 1729210), (20, 1556289), (21, 1482180), (28, 1111635), (30, 1037526), (35, 889308), (36, 864605), (42, 741090), (45, 691684), (49, 635220), (60, 518763), (63, 494060), (70, 444654), (84, 370545), (90, 345842), (98, 317610), (105, 296436), (126, 247030), (140, 222327), (147, 211740), (180, 172921), (196, 158805), (210, 148218), (245, 127044), (252, 123515), (294, 105870), (315, 98812), (420, 74109), (441, 70580), (490, 63522), (588, 52935), (630, 49406), (735, 42348), (882, 35290), (980, 31761), (1260, 24703), (1470, 21174), (1764, 17645), (2205, 14116), (2940, 10587), (3529, 8820), (4410, 7058)]