81509600

素因数分解:

$2^5\times 5^2\times {\mathrm{139}}^1\times {\mathrm{733}}^1$

素因数の和:892

約数の個数: 72

約数和(自身を含む): 200690280

約数和(自身を除く): 119180680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 139, 160, 200, 278, 400, 556, 695, 733, 800, 1112, 1390, 1466, 2224, 2780, 2932, 3475, 3665, 4448, 5560, 5864, 6950, 7330, 11120, 11728, 13900, 14660, 18325, 22240, 23456, 27800, 29320, 36650, 55600, 58640, 73300, 101887, 111200, 117280, 146600, 203774, 293200, 407548, 509435, 586400, 815096, 1018870, 1630192, 2037740, 2547175, 3260384, 4075480, 5094350, 8150960, 10188700, 16301920, 20377400, 40754800, 81509600]

約数ペア:

[(1, 81509600), (2, 40754800), (4, 20377400), (5, 16301920), (8, 10188700), (10, 8150960), (16, 5094350), (20, 4075480), (25, 3260384), (32, 2547175), (40, 2037740), (50, 1630192), (80, 1018870), (100, 815096), (139, 586400), (160, 509435), (200, 407548), (278, 293200), (400, 203774), (556, 146600), (695, 117280), (733, 111200), (800, 101887), (1112, 73300), (1390, 58640), (1466, 55600), (2224, 36650), (2780, 29320), (2932, 27800), (3475, 23456), (3665, 22240), (4448, 18325), (5560, 14660), (5864, 13900), (6950, 11728), (7330, 11120)]