20773620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16487}}^1$

素因数の和:16509

約数の個数: 72

約数和(自身を含む): 72019584

約数和(自身を除く): 51245964

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16487, 32974, 49461, 65948, 82435, 98922, 115409, 148383, 164870, 197844, 230818, 247305, 296766, 329740, 346227, 461636, 494610, 577045, 593532, 692454, 741915, 989220, 1038681, 1154090, 1384908, 1483830, 1731135, 2077362, 2308180, 2967660, 3462270, 4154724, 5193405, 6924540, 10386810, 20773620]

約数ペア:

[(1, 20773620), (2, 10386810), (3, 6924540), (4, 5193405), (5, 4154724), (6, 3462270), (7, 2967660), (9, 2308180), (10, 2077362), (12, 1731135), (14, 1483830), (15, 1384908), (18, 1154090), (20, 1038681), (21, 989220), (28, 741915), (30, 692454), (35, 593532), (36, 577045), (42, 494610), (45, 461636), (60, 346227), (63, 329740), (70, 296766), (84, 247305), (90, 230818), (105, 197844), (126, 164870), (140, 148383), (180, 115409), (210, 98922), (252, 82435), (315, 65948), (420, 49461), (630, 32974), (1260, 16487)]