19798200

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 70508880

約数和(自身を除く): 50710680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 25, 30, 34, 36, 40, 45, 50, 51, 60, 68, 72, 75, 85, 90, 100, 102, 120, 136, 150, 153, 170, 180, 200, 204, 225, 255, 300, 306, 340, 360, 408, 425, 450, 510, 600, 612, 647, 680, 765, 850, 900, 1020, 1224, 1275, 1294, 1530, 1700, 1800, 1941, 2040, 2550, 2588, 3060, 3235, 3400, 3825, 3882, 5100, 5176, 5823, 6120, 6470, 7650, 7764, 9705, 10200, 10999, 11646, 12940, 15300, 15528, 16175, 19410, 21998, 23292, 25880, 29115, 30600, 32350, 32997, 38820, 43996, 46584, 48525, 54995, 58230, 64700, 65994, 77640, 87992, 97050, 98991, 109990, 116460, 129400, 131988, 145575, 164985, 194100, 197982, 219980, 232920, 263976, 274975, 291150, 329970, 388200, 395964, 439960, 494955, 549950, 582300, 659940, 791928, 824925, 989910, 1099900, 1164600, 1319880, 1649850, 1979820, 2199800, 2474775, 3299700, 3959640, 4949550, 6599400, 9899100, 19798200]

約数ペア:

[(1, 19798200), (2, 9899100), (3, 6599400), (4, 4949550), (5, 3959640), (6, 3299700), (8, 2474775), (9, 2199800), (10, 1979820), (12, 1649850), (15, 1319880), (17, 1164600), (18, 1099900), (20, 989910), (24, 824925), (25, 791928), (30, 659940), (34, 582300), (36, 549950), (40, 494955), (45, 439960), (50, 395964), (51, 388200), (60, 329970), (68, 291150), (72, 274975), (75, 263976), (85, 232920), (90, 219980), (100, 197982), (102, 194100), (120, 164985), (136, 145575), (150, 131988), (153, 129400), (170, 116460), (180, 109990), (200, 98991), (204, 97050), (225, 87992), (255, 77640), (300, 65994), (306, 64700), (340, 58230), (360, 54995), (408, 48525), (425, 46584), (450, 43996), (510, 38820), (600, 32997), (612, 32350), (647, 30600), (680, 29115), (765, 25880), (850, 23292), (900, 21998), (1020, 19410), (1224, 16175), (1275, 15528), (1294, 15300), (1530, 12940), (1700, 11646), (1800, 10999), (1941, 10200), (2040, 9705), (2550, 7764), (2588, 7650), (3060, 6470), (3235, 6120), (3400, 5823), (3825, 5176), (3882, 5100)]