20818563520

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{32191}}^1$

素因数の和:32298

約数の個数: 112

約数和(自身を含む): 51808002048

約数和(自身を除く): 30989438528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 47, 64, 80, 86, 94, 160, 172, 188, 215, 235, 320, 344, 376, 430, 470, 688, 752, 860, 940, 1376, 1504, 1720, 1880, 2021, 2752, 3008, 3440, 3760, 4042, 6880, 7520, 8084, 10105, 13760, 15040, 16168, 20210, 32191, 32336, 40420, 64382, 64672, 80840, 128764, 129344, 160955, 161680, 257528, 321910, 323360, 515056, 643820, 646720, 1030112, 1287640, 1384213, 1512977, 2060224, 2575280, 2768426, 3025954, 5150560, 5536852, 6051908, 6921065, 7564885, 10301120, 11073704, 12103816, 13842130, 15129770, 22147408, 24207632, 27684260, 30259540, 44294816, 48415264, 55368520, 60519080, 65058011, 88589632, 96830528, 110737040, 121038160, 130116022, 221474080, 242076320, 260232044, 325290055, 442948160, 484152640, 520464088, 650580110, 1040928176, 1301160220, 2081856352, 2602320440, 4163712704, 5204640880, 10409281760, 20818563520]

約数ペア:

[(1, 20818563520), (2, 10409281760), (4, 5204640880), (5, 4163712704), (8, 2602320440), (10, 2081856352), (16, 1301160220), (20, 1040928176), (32, 650580110), (40, 520464088), (43, 484152640), (47, 442948160), (64, 325290055), (80, 260232044), (86, 242076320), (94, 221474080), (160, 130116022), (172, 121038160), (188, 110737040), (215, 96830528), (235, 88589632), (320, 65058011), (344, 60519080), (376, 55368520), (430, 48415264), (470, 44294816), (688, 30259540), (752, 27684260), (860, 24207632), (940, 22147408), (1376, 15129770), (1504, 13842130), (1720, 12103816), (1880, 11073704), (2021, 10301120), (2752, 7564885), (3008, 6921065), (3440, 6051908), (3760, 5536852), (4042, 5150560), (6880, 3025954), (7520, 2768426), (8084, 2575280), (10105, 2060224), (13760, 1512977), (15040, 1384213), (16168, 1287640), (20210, 1030112), (32191, 646720), (32336, 643820), (40420, 515056), (64382, 323360), (64672, 321910), (80840, 257528), (128764, 161680), (129344, 160955)]