20962560

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 68874624

約数和(自身を除く): 47912064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 103, 106, 120, 128, 159, 160, 192, 206, 212, 240, 256, 265, 309, 318, 320, 384, 412, 424, 480, 515, 530, 618, 636, 640, 768, 795, 824, 848, 960, 1030, 1060, 1236, 1272, 1280, 1545, 1590, 1648, 1696, 1920, 2060, 2120, 2472, 2544, 3090, 3180, 3296, 3392, 3840, 4120, 4240, 4944, 5088, 5459, 6180, 6360, 6592, 6784, 8240, 8480, 9888, 10176, 10918, 12360, 12720, 13184, 13568, 16377, 16480, 16960, 19776, 20352, 21836, 24720, 25440, 26368, 27295, 32754, 32960, 33920, 39552, 40704, 43672, 49440, 50880, 54590, 65508, 65920, 67840, 79104, 81885, 87344, 98880, 101760, 109180, 131016, 131840, 163770, 174688, 197760, 203520, 218360, 262032, 327540, 349376, 395520, 436720, 524064, 655080, 698752, 873440, 1048128, 1310160, 1397504, 1746880, 2096256, 2620320, 3493760, 4192512, 5240640, 6987520, 10481280, 20962560]

約数ペア:

[(1, 20962560), (2, 10481280), (3, 6987520), (4, 5240640), (5, 4192512), (6, 3493760), (8, 2620320), (10, 2096256), (12, 1746880), (15, 1397504), (16, 1310160), (20, 1048128), (24, 873440), (30, 698752), (32, 655080), (40, 524064), (48, 436720), (53, 395520), (60, 349376), (64, 327540), (80, 262032), (96, 218360), (103, 203520), (106, 197760), (120, 174688), (128, 163770), (159, 131840), (160, 131016), (192, 109180), (206, 101760), (212, 98880), (240, 87344), (256, 81885), (265, 79104), (309, 67840), (318, 65920), (320, 65508), (384, 54590), (412, 50880), (424, 49440), (480, 43672), (515, 40704), (530, 39552), (618, 33920), (636, 32960), (640, 32754), (768, 27295), (795, 26368), (824, 25440), (848, 24720), (960, 21836), (1030, 20352), (1060, 19776), (1236, 16960), (1272, 16480), (1280, 16377), (1545, 13568), (1590, 13184), (1648, 12720), (1696, 12360), (1920, 10918), (2060, 10176), (2120, 9888), (2472, 8480), (2544, 8240), (3090, 6784), (3180, 6592), (3296, 6360), (3392, 6180), (3840, 5459), (4120, 5088), (4240, 4944)]