19798080

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:564

約数の個数: 112

約数和(自身を含む): 64520064

約数和(自身を除く): 44721984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 160, 164, 192, 205, 240, 246, 320, 328, 410, 480, 492, 503, 615, 656, 820, 960, 984, 1006, 1230, 1312, 1509, 1640, 1968, 2012, 2460, 2515, 2624, 3018, 3280, 3936, 4024, 4920, 5030, 6036, 6560, 7545, 7872, 8048, 9840, 10060, 12072, 13120, 15090, 16096, 19680, 20120, 20623, 24144, 30180, 32192, 39360, 40240, 41246, 48288, 60360, 61869, 80480, 82492, 96576, 103115, 120720, 123738, 160960, 164984, 206230, 241440, 247476, 309345, 329968, 412460, 482880, 494952, 618690, 659936, 824920, 989904, 1237380, 1319872, 1649840, 1979808, 2474760, 3299680, 3959616, 4949520, 6599360, 9899040, 19798080]

約数ペア:

[(1, 19798080), (2, 9899040), (3, 6599360), (4, 4949520), (5, 3959616), (6, 3299680), (8, 2474760), (10, 1979808), (12, 1649840), (15, 1319872), (16, 1237380), (20, 989904), (24, 824920), (30, 659936), (32, 618690), (40, 494952), (41, 482880), (48, 412460), (60, 329968), (64, 309345), (80, 247476), (82, 241440), (96, 206230), (120, 164984), (123, 160960), (160, 123738), (164, 120720), (192, 103115), (205, 96576), (240, 82492), (246, 80480), (320, 61869), (328, 60360), (410, 48288), (480, 41246), (492, 40240), (503, 39360), (615, 32192), (656, 30180), (820, 24144), (960, 20623), (984, 20120), (1006, 19680), (1230, 16096), (1312, 15090), (1509, 13120), (1640, 12072), (1968, 10060), (2012, 9840), (2460, 8048), (2515, 7872), (2624, 7545), (3018, 6560), (3280, 6036), (3936, 5030), (4024, 4920)]