19988160

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:510

約数の個数: 112

約数和(自身を含む): 64958976

約数和(自身を除く): 44970816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 141, 160, 188, 192, 235, 240, 282, 320, 376, 443, 470, 480, 564, 705, 752, 886, 940, 960, 1128, 1329, 1410, 1504, 1772, 1880, 2215, 2256, 2658, 2820, 3008, 3544, 3760, 4430, 4512, 5316, 5640, 6645, 7088, 7520, 8860, 9024, 10632, 11280, 13290, 14176, 15040, 17720, 20821, 21264, 22560, 26580, 28352, 35440, 41642, 42528, 45120, 53160, 62463, 70880, 83284, 85056, 104105, 106320, 124926, 141760, 166568, 208210, 212640, 249852, 312315, 333136, 416420, 425280, 499704, 624630, 666272, 832840, 999408, 1249260, 1332544, 1665680, 1998816, 2498520, 3331360, 3997632, 4997040, 6662720, 9994080, 19988160]

約数ペア:

[(1, 19988160), (2, 9994080), (3, 6662720), (4, 4997040), (5, 3997632), (6, 3331360), (8, 2498520), (10, 1998816), (12, 1665680), (15, 1332544), (16, 1249260), (20, 999408), (24, 832840), (30, 666272), (32, 624630), (40, 499704), (47, 425280), (48, 416420), (60, 333136), (64, 312315), (80, 249852), (94, 212640), (96, 208210), (120, 166568), (141, 141760), (160, 124926), (188, 106320), (192, 104105), (235, 85056), (240, 83284), (282, 70880), (320, 62463), (376, 53160), (443, 45120), (470, 42528), (480, 41642), (564, 35440), (705, 28352), (752, 26580), (886, 22560), (940, 21264), (960, 20821), (1128, 17720), (1329, 15040), (1410, 14176), (1504, 13290), (1772, 11280), (1880, 10632), (2215, 9024), (2256, 8860), (2658, 7520), (2820, 7088), (3008, 6645), (3544, 5640), (3760, 5316), (4430, 4512)]