257324800

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1354

約数の個数: 108

約数和(自身を含む): 657971776

約数和(自身を除く): 400646976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 620, 640, 775, 800, 992, 1240, 1280, 1297, 1550, 1600, 1984, 2480, 2594, 3100, 3200, 3968, 4960, 5188, 6200, 6400, 6485, 7936, 9920, 10376, 12400, 12970, 19840, 20752, 24800, 25940, 32425, 39680, 40207, 41504, 49600, 51880, 64850, 80414, 83008, 99200, 103760, 129700, 160828, 166016, 198400, 201035, 207520, 259400, 321656, 332032, 402070, 415040, 518800, 643312, 804140, 830080, 1005175, 1037600, 1286624, 1608280, 1660160, 2010350, 2075200, 2573248, 3216560, 4020700, 4150400, 5146496, 6433120, 8041400, 8300800, 10292992, 12866240, 16082800, 25732480, 32165600, 51464960, 64331200, 128662400, 257324800]

約数ペア:

[(1, 257324800), (2, 128662400), (4, 64331200), (5, 51464960), (8, 32165600), (10, 25732480), (16, 16082800), (20, 12866240), (25, 10292992), (31, 8300800), (32, 8041400), (40, 6433120), (50, 5146496), (62, 4150400), (64, 4020700), (80, 3216560), (100, 2573248), (124, 2075200), (128, 2010350), (155, 1660160), (160, 1608280), (200, 1286624), (248, 1037600), (256, 1005175), (310, 830080), (320, 804140), (400, 643312), (496, 518800), (620, 415040), (640, 402070), (775, 332032), (800, 321656), (992, 259400), (1240, 207520), (1280, 201035), (1297, 198400), (1550, 166016), (1600, 160828), (1984, 129700), (2480, 103760), (2594, 99200), (3100, 83008), (3200, 80414), (3968, 64850), (4960, 51880), (5188, 49600), (6200, 41504), (6400, 40207), (6485, 39680), (7936, 32425), (9920, 25940), (10376, 24800), (12400, 20752), (12970, 19840)]