20696320

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 55923840

約数和(自身を除く): 35227520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 37, 38, 40, 46, 64, 74, 76, 80, 92, 95, 115, 128, 148, 152, 160, 184, 185, 190, 230, 256, 296, 304, 320, 368, 370, 380, 437, 460, 592, 608, 640, 703, 736, 740, 760, 851, 874, 920, 1184, 1216, 1280, 1406, 1472, 1480, 1520, 1702, 1748, 1840, 2185, 2368, 2432, 2812, 2944, 2960, 3040, 3404, 3496, 3515, 3680, 4255, 4370, 4736, 4864, 5624, 5888, 5920, 6080, 6808, 6992, 7030, 7360, 8510, 8740, 9472, 11248, 11840, 12160, 13616, 13984, 14060, 14720, 16169, 17020, 17480, 22496, 23680, 24320, 27232, 27968, 28120, 29440, 32338, 34040, 34960, 44992, 47360, 54464, 55936, 56240, 64676, 68080, 69920, 80845, 89984, 108928, 111872, 112480, 129352, 136160, 139840, 161690, 179968, 217856, 224960, 258704, 272320, 279680, 323380, 449920, 517408, 544640, 559360, 646760, 899840, 1034816, 1089280, 1293520, 2069632, 2587040, 4139264, 5174080, 10348160, 20696320]

約数ペア:

[(1, 20696320), (2, 10348160), (4, 5174080), (5, 4139264), (8, 2587040), (10, 2069632), (16, 1293520), (19, 1089280), (20, 1034816), (23, 899840), (32, 646760), (37, 559360), (38, 544640), (40, 517408), (46, 449920), (64, 323380), (74, 279680), (76, 272320), (80, 258704), (92, 224960), (95, 217856), (115, 179968), (128, 161690), (148, 139840), (152, 136160), (160, 129352), (184, 112480), (185, 111872), (190, 108928), (230, 89984), (256, 80845), (296, 69920), (304, 68080), (320, 64676), (368, 56240), (370, 55936), (380, 54464), (437, 47360), (460, 44992), (592, 34960), (608, 34040), (640, 32338), (703, 29440), (736, 28120), (740, 27968), (760, 27232), (851, 24320), (874, 23680), (920, 22496), (1184, 17480), (1216, 17020), (1280, 16169), (1406, 14720), (1472, 14060), (1480, 13984), (1520, 13616), (1702, 12160), (1748, 11840), (1840, 11248), (2185, 9472), (2368, 8740), (2432, 8510), (2812, 7360), (2944, 7030), (2960, 6992), (3040, 6808), (3404, 6080), (3496, 5920), (3515, 5888), (3680, 5624), (4255, 4864), (4370, 4736)]