31531680

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{811}}^1$

素因数の和:841

約数の個数: 144

約数和(自身を含む): 111724704

約数和(自身を除く): 80193024

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, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 811, 864, 972, 1080, 1215, 1296, 1440, 1620, 1622, 1944, 2160, 2430, 2433, 2592, 3240, 3244, 3888, 4055, 4320, 4860, 4866, 6480, 6488, 7299, 7776, 8110, 9720, 9732, 12165, 12960, 12976, 14598, 16220, 19440, 19464, 21897, 24330, 25952, 29196, 32440, 36495, 38880, 38928, 43794, 48660, 58392, 64880, 65691, 72990, 77856, 87588, 97320, 109485, 116784, 129760, 131382, 145980, 175176, 194640, 197073, 218970, 233568, 262764, 291960, 328455, 350352, 389280, 394146, 437940, 525528, 583920, 656910, 700704, 788292, 875880, 985365, 1051056, 1167840, 1313820, 1576584, 1751760, 1970730, 2102112, 2627640, 3153168, 3503520, 3941460, 5255280, 6306336, 7882920, 10510560, 15765840, 31531680]

約数ペア:

[(1, 31531680), (2, 15765840), (3, 10510560), (4, 7882920), (5, 6306336), (6, 5255280), (8, 3941460), (9, 3503520), (10, 3153168), (12, 2627640), (15, 2102112), (16, 1970730), (18, 1751760), (20, 1576584), (24, 1313820), (27, 1167840), (30, 1051056), (32, 985365), (36, 875880), (40, 788292), (45, 700704), (48, 656910), (54, 583920), (60, 525528), (72, 437940), (80, 394146), (81, 389280), (90, 350352), (96, 328455), (108, 291960), (120, 262764), (135, 233568), (144, 218970), (160, 197073), (162, 194640), (180, 175176), (216, 145980), (240, 131382), (243, 129760), (270, 116784), (288, 109485), (324, 97320), (360, 87588), (405, 77856), (432, 72990), (480, 65691), (486, 64880), (540, 58392), (648, 48660), (720, 43794), (810, 38928), (811, 38880), (864, 36495), (972, 32440), (1080, 29196), (1215, 25952), (1296, 24330), (1440, 21897), (1620, 19464), (1622, 19440), (1944, 16220), (2160, 14598), (2430, 12976), (2433, 12960), (2592, 12165), (3240, 9732), (3244, 9720), (3888, 8110), (4055, 7776), (4320, 7299), (4860, 6488), (4866, 6480)]