21649500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:325

約数の個数: 144

約数和(自身を含む): 72569952

約数和(自身を除く): 50920452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 30, 34, 36, 45, 50, 51, 60, 68, 75, 85, 90, 100, 102, 125, 150, 153, 170, 180, 204, 225, 250, 255, 283, 300, 306, 340, 375, 425, 450, 500, 510, 566, 612, 750, 765, 849, 850, 900, 1020, 1125, 1132, 1275, 1415, 1500, 1530, 1698, 1700, 2125, 2250, 2547, 2550, 2830, 3060, 3396, 3825, 4245, 4250, 4500, 4811, 5094, 5100, 5660, 6375, 7075, 7650, 8490, 8500, 9622, 10188, 12735, 12750, 14150, 14433, 15300, 16980, 19125, 19244, 21225, 24055, 25470, 25500, 28300, 28866, 35375, 38250, 42450, 43299, 48110, 50940, 57732, 63675, 70750, 72165, 76500, 84900, 86598, 96220, 106125, 120275, 127350, 141500, 144330, 173196, 212250, 216495, 240550, 254700, 288660, 318375, 360825, 424500, 432990, 481100, 601375, 636750, 721650, 865980, 1082475, 1202750, 1273500, 1443300, 1804125, 2164950, 2405500, 3608250, 4329900, 5412375, 7216500, 10824750, 21649500]

約数ペア:

[(1, 21649500), (2, 10824750), (3, 7216500), (4, 5412375), (5, 4329900), (6, 3608250), (9, 2405500), (10, 2164950), (12, 1804125), (15, 1443300), (17, 1273500), (18, 1202750), (20, 1082475), (25, 865980), (30, 721650), (34, 636750), (36, 601375), (45, 481100), (50, 432990), (51, 424500), (60, 360825), (68, 318375), (75, 288660), (85, 254700), (90, 240550), (100, 216495), (102, 212250), (125, 173196), (150, 144330), (153, 141500), (170, 127350), (180, 120275), (204, 106125), (225, 96220), (250, 86598), (255, 84900), (283, 76500), (300, 72165), (306, 70750), (340, 63675), (375, 57732), (425, 50940), (450, 48110), (500, 43299), (510, 42450), (566, 38250), (612, 35375), (750, 28866), (765, 28300), (849, 25500), (850, 25470), (900, 24055), (1020, 21225), (1125, 19244), (1132, 19125), (1275, 16980), (1415, 15300), (1500, 14433), (1530, 14150), (1698, 12750), (1700, 12735), (2125, 10188), (2250, 9622), (2547, 8500), (2550, 8490), (2830, 7650), (3060, 7075), (3396, 6375), (3825, 5660), (4245, 5100), (4250, 5094), (4500, 4811)]