857240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 1998000

約数和(自身を除く): 1140760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 739, 1160, 1478, 2956, 3695, 5912, 7390, 14780, 21431, 29560, 42862, 85724, 107155, 171448, 214310, 428620, 857240]

約数ペア:

[(1, 857240), (2, 428620), (4, 214310), (5, 171448), (8, 107155), (10, 85724), (20, 42862), (29, 29560), (40, 21431), (58, 14780), (116, 7390), (145, 5912), (232, 3695), (290, 2956), (580, 1478), (739, 1160)]