20152980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1087}}^1$

素因数の和:1205

約数の個数: 72

約数和(自身を含む): 61780992

約数和(自身を除く): 41628012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 515, 618, 927, 1030, 1087, 1236, 1545, 1854, 2060, 2174, 3090, 3261, 3708, 4348, 4635, 5435, 6180, 6522, 9270, 9783, 10870, 13044, 16305, 18540, 19566, 21740, 32610, 39132, 48915, 65220, 97830, 111961, 195660, 223922, 335883, 447844, 559805, 671766, 1007649, 1119610, 1343532, 1679415, 2015298, 2239220, 3358830, 4030596, 5038245, 6717660, 10076490, 20152980]

約数ペア:

[(1, 20152980), (2, 10076490), (3, 6717660), (4, 5038245), (5, 4030596), (6, 3358830), (9, 2239220), (10, 2015298), (12, 1679415), (15, 1343532), (18, 1119610), (20, 1007649), (30, 671766), (36, 559805), (45, 447844), (60, 335883), (90, 223922), (103, 195660), (180, 111961), (206, 97830), (309, 65220), (412, 48915), (515, 39132), (618, 32610), (927, 21740), (1030, 19566), (1087, 18540), (1236, 16305), (1545, 13044), (1854, 10870), (2060, 9783), (2174, 9270), (3090, 6522), (3261, 6180), (3708, 5435), (4348, 4635)]