278349820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:811

約数の個数: 96

約数和(自身を含む): 694987776

約数和(自身を除く): 416637956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 71, 82, 140, 142, 164, 205, 284, 287, 355, 410, 497, 574, 683, 710, 820, 994, 1148, 1366, 1420, 1435, 1988, 2485, 2732, 2870, 2911, 3415, 4781, 4970, 5740, 5822, 6830, 9562, 9940, 11644, 13660, 14555, 19124, 20377, 23905, 28003, 29110, 40754, 47810, 48493, 56006, 58220, 81508, 95620, 96986, 101885, 112012, 140015, 193972, 196021, 203770, 242465, 280030, 339451, 392042, 407540, 484930, 560060, 678902, 784084, 969860, 980105, 1357804, 1697255, 1960210, 1988213, 3394510, 3920420, 3976426, 6789020, 7952852, 9941065, 13917491, 19882130, 27834982, 39764260, 55669964, 69587455, 139174910, 278349820]

約数ペア:

[(1, 278349820), (2, 139174910), (4, 69587455), (5, 55669964), (7, 39764260), (10, 27834982), (14, 19882130), (20, 13917491), (28, 9941065), (35, 7952852), (41, 6789020), (70, 3976426), (71, 3920420), (82, 3394510), (140, 1988213), (142, 1960210), (164, 1697255), (205, 1357804), (284, 980105), (287, 969860), (355, 784084), (410, 678902), (497, 560060), (574, 484930), (683, 407540), (710, 392042), (820, 339451), (994, 280030), (1148, 242465), (1366, 203770), (1420, 196021), (1435, 193972), (1988, 140015), (2485, 112012), (2732, 101885), (2870, 96986), (2911, 95620), (3415, 81508), (4781, 58220), (4970, 56006), (5740, 48493), (5822, 47810), (6830, 40754), (9562, 29110), (9940, 28003), (11644, 23905), (13660, 20377), (14555, 19124)]