20397240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56659}}^1$

素因数の和:56676

約数の個数: 48

約数和(自身を含む): 66292200

約数和(自身を除く): 45894960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56659, 113318, 169977, 226636, 283295, 339954, 453272, 509931, 566590, 679908, 849885, 1019862, 1133180, 1359816, 1699770, 2039724, 2266360, 2549655, 3399540, 4079448, 5099310, 6799080, 10198620, 20397240]

約数ペア:

[(1, 20397240), (2, 10198620), (3, 6799080), (4, 5099310), (5, 4079448), (6, 3399540), (8, 2549655), (9, 2266360), (10, 2039724), (12, 1699770), (15, 1359816), (18, 1133180), (20, 1019862), (24, 849885), (30, 679908), (36, 566590), (40, 509931), (45, 453272), (60, 339954), (72, 283295), (90, 226636), (120, 169977), (180, 113318), (360, 56659)]