20486560

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 32856800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 76, 80, 92, 95, 115, 152, 160, 184, 190, 230, 293, 304, 368, 380, 437, 460, 586, 608, 736, 760, 874, 920, 1172, 1465, 1520, 1748, 1840, 2185, 2344, 2930, 3040, 3496, 3680, 4370, 4688, 5567, 5860, 6739, 6992, 8740, 9376, 11134, 11720, 13478, 13984, 17480, 22268, 23440, 26956, 27835, 33695, 34960, 44536, 46880, 53912, 55670, 67390, 69920, 89072, 107824, 111340, 128041, 134780, 178144, 215648, 222680, 256082, 269560, 445360, 512164, 539120, 640205, 890720, 1024328, 1078240, 1280410, 2048656, 2560820, 4097312, 5121640, 10243280, 20486560]

約数ペア:

[(1, 20486560), (2, 10243280), (4, 5121640), (5, 4097312), (8, 2560820), (10, 2048656), (16, 1280410), (19, 1078240), (20, 1024328), (23, 890720), (32, 640205), (38, 539120), (40, 512164), (46, 445360), (76, 269560), (80, 256082), (92, 222680), (95, 215648), (115, 178144), (152, 134780), (160, 128041), (184, 111340), (190, 107824), (230, 89072), (293, 69920), (304, 67390), (368, 55670), (380, 53912), (437, 46880), (460, 44536), (586, 34960), (608, 33695), (736, 27835), (760, 26956), (874, 23440), (920, 22268), (1172, 17480), (1465, 13984), (1520, 13478), (1748, 11720), (1840, 11134), (2185, 9376), (2344, 8740), (2930, 6992), (3040, 6739), (3496, 5860), (3680, 5567), (4370, 4688)]