28756800

素因数分解:

$2^6\times 3^2\times 5^2\times {\mathrm{1997}}^1$

素因数の和:2025

約数の個数: 126

約数和(自身を含む): 102259638

約数和(自身を除く): 73502838

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 144, 150, 160, 180, 192, 200, 225, 240, 288, 300, 320, 360, 400, 450, 480, 576, 600, 720, 800, 900, 960, 1200, 1440, 1600, 1800, 1997, 2400, 2880, 3600, 3994, 4800, 5991, 7200, 7988, 9985, 11982, 14400, 15976, 17973, 19970, 23964, 29955, 31952, 35946, 39940, 47928, 49925, 59910, 63904, 71892, 79880, 89865, 95856, 99850, 119820, 127808, 143784, 149775, 159760, 179730, 191712, 199700, 239640, 287568, 299550, 319520, 359460, 383424, 399400, 449325, 479280, 575136, 599100, 639040, 718920, 798800, 898650, 958560, 1150272, 1198200, 1437840, 1597600, 1797300, 1917120, 2396400, 2875680, 3195200, 3594600, 4792800, 5751360, 7189200, 9585600, 14378400, 28756800]

約数ペア:

[(1, 28756800), (2, 14378400), (3, 9585600), (4, 7189200), (5, 5751360), (6, 4792800), (8, 3594600), (9, 3195200), (10, 2875680), (12, 2396400), (15, 1917120), (16, 1797300), (18, 1597600), (20, 1437840), (24, 1198200), (25, 1150272), (30, 958560), (32, 898650), (36, 798800), (40, 718920), (45, 639040), (48, 599100), (50, 575136), (60, 479280), (64, 449325), (72, 399400), (75, 383424), (80, 359460), (90, 319520), (96, 299550), (100, 287568), (120, 239640), (144, 199700), (150, 191712), (160, 179730), (180, 159760), (192, 149775), (200, 143784), (225, 127808), (240, 119820), (288, 99850), (300, 95856), (320, 89865), (360, 79880), (400, 71892), (450, 63904), (480, 59910), (576, 49925), (600, 47928), (720, 39940), (800, 35946), (900, 31952), (960, 29955), (1200, 23964), (1440, 19970), (1600, 17973), (1800, 15976), (1997, 14400), (2400, 11982), (2880, 9985), (3600, 7988), (3994, 7200), (4800, 5991)]