78840500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 186426240

約数和(自身を除く): 107585740

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 125, 172, 190, 193, 215, 250, 380, 386, 430, 475, 500, 772, 817, 860, 950, 965, 1075, 1634, 1900, 1930, 2150, 2375, 3268, 3667, 3860, 4085, 4300, 4750, 4825, 5375, 7334, 8170, 8299, 9500, 9650, 10750, 14668, 16340, 16598, 18335, 19300, 20425, 21500, 24125, 33196, 36670, 40850, 41495, 48250, 73340, 81700, 82990, 91675, 96500, 102125, 157681, 165980, 183350, 204250, 207475, 315362, 366700, 408500, 414950, 458375, 630724, 788405, 829900, 916750, 1037375, 1576810, 1833500, 2074750, 3153620, 3942025, 4149500, 7884050, 15768100, 19710125, 39420250, 78840500]

約数ペア:

[(1, 78840500), (2, 39420250), (4, 19710125), (5, 15768100), (10, 7884050), (19, 4149500), (20, 3942025), (25, 3153620), (38, 2074750), (43, 1833500), (50, 1576810), (76, 1037375), (86, 916750), (95, 829900), (100, 788405), (125, 630724), (172, 458375), (190, 414950), (193, 408500), (215, 366700), (250, 315362), (380, 207475), (386, 204250), (430, 183350), (475, 165980), (500, 157681), (772, 102125), (817, 96500), (860, 91675), (950, 82990), (965, 81700), (1075, 73340), (1634, 48250), (1900, 41495), (1930, 40850), (2150, 36670), (2375, 33196), (3268, 24125), (3667, 21500), (3860, 20425), (4085, 19300), (4300, 18335), (4750, 16598), (4825, 16340), (5375, 14668), (7334, 10750), (8170, 9650), (8299, 9500)]