248765920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:828

約数の個数: 96

約数和(自身を含む): 637156800

約数和(自身を除く): 388390880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 199, 208, 260, 398, 416, 520, 601, 796, 995, 1040, 1202, 1592, 1990, 2080, 2404, 2587, 3005, 3184, 3980, 4808, 5174, 6010, 6368, 7813, 7960, 9616, 10348, 12020, 12935, 15626, 15920, 19232, 20696, 24040, 25870, 31252, 31840, 39065, 41392, 48080, 51740, 62504, 78130, 82784, 96160, 103480, 119599, 125008, 156260, 206960, 239198, 250016, 312520, 413920, 478396, 597995, 625040, 956792, 1195990, 1250080, 1554787, 1913584, 2391980, 3109574, 3827168, 4783960, 6219148, 7773935, 9567920, 12438296, 15547870, 19135840, 24876592, 31095740, 49753184, 62191480, 124382960, 248765920]

約数ペア:

[(1, 248765920), (2, 124382960), (4, 62191480), (5, 49753184), (8, 31095740), (10, 24876592), (13, 19135840), (16, 15547870), (20, 12438296), (26, 9567920), (32, 7773935), (40, 6219148), (52, 4783960), (65, 3827168), (80, 3109574), (104, 2391980), (130, 1913584), (160, 1554787), (199, 1250080), (208, 1195990), (260, 956792), (398, 625040), (416, 597995), (520, 478396), (601, 413920), (796, 312520), (995, 250016), (1040, 239198), (1202, 206960), (1592, 156260), (1990, 125008), (2080, 119599), (2404, 103480), (2587, 96160), (3005, 82784), (3184, 78130), (3980, 62504), (4808, 51740), (5174, 48080), (6010, 41392), (6368, 39065), (7813, 31840), (7960, 31252), (9616, 25870), (10348, 24040), (12020, 20696), (12935, 19232), (15626, 15920)]