87751040

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 128

約数和(自身を含む): 231336000

約数和(自身を除く): 143584960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 199, 208, 212, 260, 265, 320, 398, 416, 424, 520, 530, 640, 689, 796, 832, 848, 995, 1040, 1060, 1378, 1592, 1664, 1696, 1990, 2080, 2120, 2587, 2756, 3184, 3392, 3445, 3980, 4160, 4240, 5174, 5512, 6368, 6784, 6890, 7960, 8320, 8480, 10348, 10547, 11024, 12736, 12935, 13780, 15920, 16960, 20696, 21094, 22048, 25472, 25870, 27560, 31840, 33920, 41392, 42188, 44096, 51740, 52735, 55120, 63680, 82784, 84376, 88192, 103480, 105470, 110240, 127360, 137111, 165568, 168752, 206960, 210940, 220480, 274222, 331136, 337504, 413920, 421880, 440960, 548444, 675008, 685555, 827840, 843760, 1096888, 1350016, 1371110, 1655680, 1687520, 2193776, 2742220, 3375040, 4387552, 5484440, 6750080, 8775104, 10968880, 17550208, 21937760, 43875520, 87751040]

約数ペア:

[(1, 87751040), (2, 43875520), (4, 21937760), (5, 17550208), (8, 10968880), (10, 8775104), (13, 6750080), (16, 5484440), (20, 4387552), (26, 3375040), (32, 2742220), (40, 2193776), (52, 1687520), (53, 1655680), (64, 1371110), (65, 1350016), (80, 1096888), (104, 843760), (106, 827840), (128, 685555), (130, 675008), (160, 548444), (199, 440960), (208, 421880), (212, 413920), (260, 337504), (265, 331136), (320, 274222), (398, 220480), (416, 210940), (424, 206960), (520, 168752), (530, 165568), (640, 137111), (689, 127360), (796, 110240), (832, 105470), (848, 103480), (995, 88192), (1040, 84376), (1060, 82784), (1378, 63680), (1592, 55120), (1664, 52735), (1696, 51740), (1990, 44096), (2080, 42188), (2120, 41392), (2587, 33920), (2756, 31840), (3184, 27560), (3392, 25870), (3445, 25472), (3980, 22048), (4160, 21094), (4240, 20696), (5174, 16960), (5512, 15920), (6368, 13780), (6784, 12935), (6890, 12736), (7960, 11024), (8320, 10547), (8480, 10348)]