281413120

素因数分解:

$2^9\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2971}}^1$

素因数の和:3031

約数の個数: 80

約数和(自身を含む): 693201168

約数和(自身を除く): 411788048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 512, 592, 640, 740, 1184, 1280, 1480, 2368, 2560, 2960, 2971, 4736, 5920, 5942, 9472, 11840, 11884, 14855, 18944, 23680, 23768, 29710, 47360, 47536, 59420, 94720, 95072, 109927, 118840, 190144, 219854, 237680, 380288, 439708, 475360, 549635, 760576, 879416, 950720, 1099270, 1521152, 1758832, 1901440, 2198540, 3517664, 3802880, 4397080, 7035328, 7605760, 8794160, 14070656, 17588320, 28141312, 35176640, 56282624, 70353280, 140706560, 281413120]

約数ペア:

[(1, 281413120), (2, 140706560), (4, 70353280), (5, 56282624), (8, 35176640), (10, 28141312), (16, 17588320), (20, 14070656), (32, 8794160), (37, 7605760), (40, 7035328), (64, 4397080), (74, 3802880), (80, 3517664), (128, 2198540), (148, 1901440), (160, 1758832), (185, 1521152), (256, 1099270), (296, 950720), (320, 879416), (370, 760576), (512, 549635), (592, 475360), (640, 439708), (740, 380288), (1184, 237680), (1280, 219854), (1480, 190144), (2368, 118840), (2560, 109927), (2960, 95072), (2971, 94720), (4736, 59420), (5920, 47536), (5942, 47360), (9472, 29710), (11840, 23768), (11884, 23680), (14855, 18944)]