20693520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:761

約数の個数: 120

約数和(自身を含む): 71292312

約数和(自身を除く): 50598792

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 120, 123, 144, 164, 180, 205, 240, 246, 328, 360, 369, 410, 492, 615, 656, 701, 720, 738, 820, 984, 1230, 1402, 1476, 1640, 1845, 1968, 2103, 2460, 2804, 2952, 3280, 3505, 3690, 4206, 4920, 5608, 5904, 6309, 7010, 7380, 8412, 9840, 10515, 11216, 12618, 14020, 14760, 16824, 21030, 25236, 28040, 28741, 29520, 31545, 33648, 42060, 50472, 56080, 57482, 63090, 84120, 86223, 100944, 114964, 126180, 143705, 168240, 172446, 229928, 252360, 258669, 287410, 344892, 431115, 459856, 504720, 517338, 574820, 689784, 862230, 1034676, 1149640, 1293345, 1379568, 1724460, 2069352, 2299280, 2586690, 3448920, 4138704, 5173380, 6897840, 10346760, 20693520]

約数ペア:

[(1, 20693520), (2, 10346760), (3, 6897840), (4, 5173380), (5, 4138704), (6, 3448920), (8, 2586690), (9, 2299280), (10, 2069352), (12, 1724460), (15, 1379568), (16, 1293345), (18, 1149640), (20, 1034676), (24, 862230), (30, 689784), (36, 574820), (40, 517338), (41, 504720), (45, 459856), (48, 431115), (60, 344892), (72, 287410), (80, 258669), (82, 252360), (90, 229928), (120, 172446), (123, 168240), (144, 143705), (164, 126180), (180, 114964), (205, 100944), (240, 86223), (246, 84120), (328, 63090), (360, 57482), (369, 56080), (410, 50472), (492, 42060), (615, 33648), (656, 31545), (701, 29520), (720, 28741), (738, 28040), (820, 25236), (984, 21030), (1230, 16824), (1402, 14760), (1476, 14020), (1640, 12618), (1845, 11216), (1968, 10515), (2103, 9840), (2460, 8412), (2804, 7380), (2952, 7010), (3280, 6309), (3505, 5904), (3690, 5608), (4206, 4920)]