20405448

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{40487}}^1$

素因数の和:40506

約数の個数: 48

約数和(自身を含む): 63161280

約数和(自身を除く): 42755832

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 40487, 80974, 121461, 161948, 242922, 283409, 323896, 364383, 485844, 566818, 728766, 850227, 971688, 1133636, 1457532, 1700454, 2267272, 2550681, 2915064, 3400908, 5101362, 6801816, 10202724, 20405448]

約数ペア:

[(1, 20405448), (2, 10202724), (3, 6801816), (4, 5101362), (6, 3400908), (7, 2915064), (8, 2550681), (9, 2267272), (12, 1700454), (14, 1457532), (18, 1133636), (21, 971688), (24, 850227), (28, 728766), (36, 566818), (42, 485844), (56, 364383), (63, 323896), (72, 283409), (84, 242922), (126, 161948), (168, 121461), (252, 80974), (504, 40487)]