130798720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 128

約数和(自身を含む): 342720000

約数和(自身を除く): 211921280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 79, 80, 104, 128, 130, 158, 160, 199, 208, 260, 316, 320, 395, 398, 416, 520, 632, 640, 790, 796, 832, 995, 1027, 1040, 1264, 1580, 1592, 1664, 1990, 2054, 2080, 2528, 2587, 3160, 3184, 3980, 4108, 4160, 5056, 5135, 5174, 6320, 6368, 7960, 8216, 8320, 10112, 10270, 10348, 12640, 12736, 12935, 15721, 15920, 16432, 20540, 20696, 25280, 25472, 25870, 31442, 31840, 32864, 41080, 41392, 50560, 51740, 62884, 63680, 65728, 78605, 82160, 82784, 103480, 125768, 127360, 131456, 157210, 164320, 165568, 204373, 206960, 251536, 314420, 328640, 331136, 408746, 413920, 503072, 628840, 657280, 817492, 827840, 1006144, 1021865, 1257680, 1634984, 1655680, 2012288, 2043730, 2515360, 3269968, 4087460, 5030720, 6539936, 8174920, 10061440, 13079872, 16349840, 26159744, 32699680, 65399360, 130798720]

約数ペア:

[(1, 130798720), (2, 65399360), (4, 32699680), (5, 26159744), (8, 16349840), (10, 13079872), (13, 10061440), (16, 8174920), (20, 6539936), (26, 5030720), (32, 4087460), (40, 3269968), (52, 2515360), (64, 2043730), (65, 2012288), (79, 1655680), (80, 1634984), (104, 1257680), (128, 1021865), (130, 1006144), (158, 827840), (160, 817492), (199, 657280), (208, 628840), (260, 503072), (316, 413920), (320, 408746), (395, 331136), (398, 328640), (416, 314420), (520, 251536), (632, 206960), (640, 204373), (790, 165568), (796, 164320), (832, 157210), (995, 131456), (1027, 127360), (1040, 125768), (1264, 103480), (1580, 82784), (1592, 82160), (1664, 78605), (1990, 65728), (2054, 63680), (2080, 62884), (2528, 51740), (2587, 50560), (3160, 41392), (3184, 41080), (3980, 32864), (4108, 31840), (4160, 31442), (5056, 25870), (5135, 25472), (5174, 25280), (6320, 20696), (6368, 20540), (7960, 16432), (8216, 15920), (8320, 15721), (10112, 12935), (10270, 12736), (10348, 12640)]