20997600

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{673}}^1$

素因数の和:709

約数の個数: 144

約数和(自身を含む): 73714032

約数和(自身を除く): 52716432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 96, 100, 104, 120, 130, 150, 156, 160, 195, 200, 208, 240, 260, 300, 312, 325, 390, 400, 416, 480, 520, 600, 624, 650, 673, 780, 800, 975, 1040, 1200, 1248, 1300, 1346, 1560, 1950, 2019, 2080, 2400, 2600, 2692, 3120, 3365, 3900, 4038, 5200, 5384, 6240, 6730, 7800, 8076, 8749, 10095, 10400, 10768, 13460, 15600, 16152, 16825, 17498, 20190, 21536, 26247, 26920, 31200, 32304, 33650, 34996, 40380, 43745, 50475, 52494, 53840, 64608, 67300, 69992, 80760, 87490, 100950, 104988, 107680, 131235, 134600, 139984, 161520, 174980, 201900, 209976, 218725, 262470, 269200, 279968, 323040, 349960, 403800, 419952, 437450, 524940, 538400, 656175, 699920, 807600, 839904, 874900, 1049880, 1312350, 1399840, 1615200, 1749800, 2099760, 2624700, 3499600, 4199520, 5249400, 6999200, 10498800, 20997600]

約数ペア:

[(1, 20997600), (2, 10498800), (3, 6999200), (4, 5249400), (5, 4199520), (6, 3499600), (8, 2624700), (10, 2099760), (12, 1749800), (13, 1615200), (15, 1399840), (16, 1312350), (20, 1049880), (24, 874900), (25, 839904), (26, 807600), (30, 699920), (32, 656175), (39, 538400), (40, 524940), (48, 437450), (50, 419952), (52, 403800), (60, 349960), (65, 323040), (75, 279968), (78, 269200), (80, 262470), (96, 218725), (100, 209976), (104, 201900), (120, 174980), (130, 161520), (150, 139984), (156, 134600), (160, 131235), (195, 107680), (200, 104988), (208, 100950), (240, 87490), (260, 80760), (300, 69992), (312, 67300), (325, 64608), (390, 53840), (400, 52494), (416, 50475), (480, 43745), (520, 40380), (600, 34996), (624, 33650), (650, 32304), (673, 31200), (780, 26920), (800, 26247), (975, 21536), (1040, 20190), (1200, 17498), (1248, 16825), (1300, 16152), (1346, 15600), (1560, 13460), (1950, 10768), (2019, 10400), (2080, 10095), (2400, 8749), (2600, 8076), (2692, 7800), (3120, 6730), (3365, 6240), (3900, 5384), (4038, 5200)]