20123520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:292

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 45678720

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, 223, 235, 240, 282, 320, 376, 384, 446, 470, 480, 564, 640, 669, 705, 752, 892, 940, 960, 1115, 1128, 1338, 1410, 1504, 1784, 1880, 1920, 2230, 2256, 2676, 2820, 3008, 3345, 3568, 3760, 4460, 4512, 5352, 5640, 6016, 6690, 7136, 7520, 8920, 9024, 10481, 10704, 11280, 13380, 14272, 15040, 17840, 18048, 20962, 21408, 22560, 26760, 28544, 30080, 31443, 35680, 41924, 42816, 45120, 52405, 53520, 62886, 71360, 83848, 85632, 90240, 104810, 107040, 125772, 142720, 157215, 167696, 209620, 214080, 251544, 314430, 335392, 419240, 428160, 503088, 628860, 670784, 838480, 1006176, 1257720, 1341568, 1676960, 2012352, 2515440, 3353920, 4024704, 5030880, 6707840, 10061760, 20123520]

約数ペア:

[(1, 20123520), (2, 10061760), (3, 6707840), (4, 5030880), (5, 4024704), (6, 3353920), (8, 2515440), (10, 2012352), (12, 1676960), (15, 1341568), (16, 1257720), (20, 1006176), (24, 838480), (30, 670784), (32, 628860), (40, 503088), (47, 428160), (48, 419240), (60, 335392), (64, 314430), (80, 251544), (94, 214080), (96, 209620), (120, 167696), (128, 157215), (141, 142720), (160, 125772), (188, 107040), (192, 104810), (223, 90240), (235, 85632), (240, 83848), (282, 71360), (320, 62886), (376, 53520), (384, 52405), (446, 45120), (470, 42816), (480, 41924), (564, 35680), (640, 31443), (669, 30080), (705, 28544), (752, 26760), (892, 22560), (940, 21408), (960, 20962), (1115, 18048), (1128, 17840), (1338, 15040), (1410, 14272), (1504, 13380), (1784, 11280), (1880, 10704), (1920, 10481), (2230, 9024), (2256, 8920), (2676, 7520), (2820, 7136), (3008, 6690), (3345, 6016), (3568, 5640), (3760, 5352), (4460, 4512)]