20719728

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7573}}^1$

素因数の和:7606

約数の個数: 60

約数和(自身を含む): 61046440

約数和(自身を除く): 40326712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7573, 15146, 22719, 30292, 45438, 60584, 68157, 90876, 121168, 136314, 143887, 181752, 272628, 287774, 363504, 431661, 545256, 575548, 863322, 1090512, 1151096, 1294983, 1726644, 2302192, 2589966, 3453288, 5179932, 6906576, 10359864, 20719728]

約数ペア:

[(1, 20719728), (2, 10359864), (3, 6906576), (4, 5179932), (6, 3453288), (8, 2589966), (9, 2302192), (12, 1726644), (16, 1294983), (18, 1151096), (19, 1090512), (24, 863322), (36, 575548), (38, 545256), (48, 431661), (57, 363504), (72, 287774), (76, 272628), (114, 181752), (144, 143887), (152, 136314), (171, 121168), (228, 90876), (304, 68157), (342, 60584), (456, 45438), (684, 30292), (912, 22719), (1368, 15146), (2736, 7573)]