25881120

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1997}}^1$

素因数の和:2024

約数の個数: 120

約数和(自身を含む): 91384524

約数和(自身を除く): 65503404

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, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 1997, 2160, 2592, 3240, 3994, 4320, 5991, 6480, 7988, 9985, 11982, 12960, 15976, 17973, 19970, 23964, 29955, 31952, 35946, 39940, 47928, 53919, 59910, 63904, 71892, 79880, 89865, 95856, 107838, 119820, 143784, 159760, 161757, 179730, 191712, 215676, 239640, 269595, 287568, 319520, 323514, 359460, 431352, 479280, 539190, 575136, 647028, 718920, 808785, 862704, 958560, 1078380, 1294056, 1437840, 1617570, 1725408, 2156760, 2588112, 2875680, 3235140, 4313520, 5176224, 6470280, 8627040, 12940560, 25881120]

約数ペア:

[(1, 25881120), (2, 12940560), (3, 8627040), (4, 6470280), (5, 5176224), (6, 4313520), (8, 3235140), (9, 2875680), (10, 2588112), (12, 2156760), (15, 1725408), (16, 1617570), (18, 1437840), (20, 1294056), (24, 1078380), (27, 958560), (30, 862704), (32, 808785), (36, 718920), (40, 647028), (45, 575136), (48, 539190), (54, 479280), (60, 431352), (72, 359460), (80, 323514), (81, 319520), (90, 287568), (96, 269595), (108, 239640), (120, 215676), (135, 191712), (144, 179730), (160, 161757), (162, 159760), (180, 143784), (216, 119820), (240, 107838), (270, 95856), (288, 89865), (324, 79880), (360, 71892), (405, 63904), (432, 59910), (480, 53919), (540, 47928), (648, 39940), (720, 35946), (810, 31952), (864, 29955), (1080, 23964), (1296, 19970), (1440, 17973), (1620, 15976), (1997, 12960), (2160, 11982), (2592, 9985), (3240, 7988), (3994, 6480), (4320, 5991)]