81349600

素因数分解:

$2^5\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1667}}^1$

素因数の和:1748

約数の個数: 72

約数和(自身を含む): 201971448

約数和(自身を除く): 120621848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 80, 100, 122, 160, 200, 244, 305, 400, 488, 610, 800, 976, 1220, 1525, 1667, 1952, 2440, 3050, 3334, 4880, 6100, 6668, 8335, 9760, 12200, 13336, 16670, 24400, 26672, 33340, 41675, 48800, 53344, 66680, 83350, 101687, 133360, 166700, 203374, 266720, 333400, 406748, 508435, 666800, 813496, 1016870, 1333600, 1626992, 2033740, 2542175, 3253984, 4067480, 5084350, 8134960, 10168700, 16269920, 20337400, 40674800, 81349600]

約数ペア:

[(1, 81349600), (2, 40674800), (4, 20337400), (5, 16269920), (8, 10168700), (10, 8134960), (16, 5084350), (20, 4067480), (25, 3253984), (32, 2542175), (40, 2033740), (50, 1626992), (61, 1333600), (80, 1016870), (100, 813496), (122, 666800), (160, 508435), (200, 406748), (244, 333400), (305, 266720), (400, 203374), (488, 166700), (610, 133360), (800, 101687), (976, 83350), (1220, 66680), (1525, 53344), (1667, 48800), (1952, 41675), (2440, 33340), (3050, 26672), (3334, 24400), (4880, 16670), (6100, 13336), (6668, 12200), (8335, 9760)]