20664960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:298

約数の個数: 128

約数和(自身を含む): 67564800

約数和(自身を除く): 46899840

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, 128, 141, 160, 188, 192, 229, 235, 240, 282, 320, 376, 384, 458, 470, 480, 564, 640, 687, 705, 752, 916, 940, 960, 1128, 1145, 1374, 1410, 1504, 1832, 1880, 1920, 2256, 2290, 2748, 2820, 3008, 3435, 3664, 3760, 4512, 4580, 5496, 5640, 6016, 6870, 7328, 7520, 9024, 9160, 10763, 10992, 11280, 13740, 14656, 15040, 18048, 18320, 21526, 21984, 22560, 27480, 29312, 30080, 32289, 36640, 43052, 43968, 45120, 53815, 54960, 64578, 73280, 86104, 87936, 90240, 107630, 109920, 129156, 146560, 161445, 172208, 215260, 219840, 258312, 322890, 344416, 430520, 439680, 516624, 645780, 688832, 861040, 1033248, 1291560, 1377664, 1722080, 2066496, 2583120, 3444160, 4132992, 5166240, 6888320, 10332480, 20664960]

約数ペア:

[(1, 20664960), (2, 10332480), (3, 6888320), (4, 5166240), (5, 4132992), (6, 3444160), (8, 2583120), (10, 2066496), (12, 1722080), (15, 1377664), (16, 1291560), (20, 1033248), (24, 861040), (30, 688832), (32, 645780), (40, 516624), (47, 439680), (48, 430520), (60, 344416), (64, 322890), (80, 258312), (94, 219840), (96, 215260), (120, 172208), (128, 161445), (141, 146560), (160, 129156), (188, 109920), (192, 107630), (229, 90240), (235, 87936), (240, 86104), (282, 73280), (320, 64578), (376, 54960), (384, 53815), (458, 45120), (470, 43968), (480, 43052), (564, 36640), (640, 32289), (687, 30080), (705, 29312), (752, 27480), (916, 22560), (940, 21984), (960, 21526), (1128, 18320), (1145, 18048), (1374, 15040), (1410, 14656), (1504, 13740), (1832, 11280), (1880, 10992), (1920, 10763), (2256, 9160), (2290, 9024), (2748, 7520), (2820, 7328), (3008, 6870), (3435, 6016), (3664, 5640), (3760, 5496), (4512, 4580)]