40720320

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{1571}}^1$

素因数の和:1600

約数の個数: 140

約数和(自身を含む): 144941544

約数和(自身を除く): 104221224

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 810, 864, 960, 1080, 1296, 1440, 1571, 1620, 1728, 2160, 2592, 2880, 3142, 3240, 4320, 4713, 5184, 6284, 6480, 7855, 8640, 9426, 12568, 12960, 14139, 15710, 18852, 23565, 25136, 25920, 28278, 31420, 37704, 42417, 47130, 50272, 56556, 62840, 70695, 75408, 84834, 94260, 100544, 113112, 125680, 127251, 141390, 150816, 169668, 188520, 212085, 226224, 251360, 254502, 282780, 301632, 339336, 377040, 424170, 452448, 502720, 509004, 565560, 636255, 678672, 754080, 848340, 904896, 1018008, 1131120, 1272510, 1357344, 1508160, 1696680, 2036016, 2262240, 2545020, 2714688, 3393360, 4072032, 4524480, 5090040, 6786720, 8144064, 10180080, 13573440, 20360160, 40720320]

約数ペア:

[(1, 40720320), (2, 20360160), (3, 13573440), (4, 10180080), (5, 8144064), (6, 6786720), (8, 5090040), (9, 4524480), (10, 4072032), (12, 3393360), (15, 2714688), (16, 2545020), (18, 2262240), (20, 2036016), (24, 1696680), (27, 1508160), (30, 1357344), (32, 1272510), (36, 1131120), (40, 1018008), (45, 904896), (48, 848340), (54, 754080), (60, 678672), (64, 636255), (72, 565560), (80, 509004), (81, 502720), (90, 452448), (96, 424170), (108, 377040), (120, 339336), (135, 301632), (144, 282780), (160, 254502), (162, 251360), (180, 226224), (192, 212085), (216, 188520), (240, 169668), (270, 150816), (288, 141390), (320, 127251), (324, 125680), (360, 113112), (405, 100544), (432, 94260), (480, 84834), (540, 75408), (576, 70695), (648, 62840), (720, 56556), (810, 50272), (864, 47130), (960, 42417), (1080, 37704), (1296, 31420), (1440, 28278), (1571, 25920), (1620, 25136), (1728, 23565), (2160, 18852), (2592, 15710), (2880, 14139), (3142, 12960), (3240, 12568), (4320, 9426), (4713, 8640), (5184, 7855), (6284, 6480)]