57201920

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 150111360

約数和(自身を除く): 92909440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 32, 40, 46, 58, 64, 67, 80, 92, 115, 116, 128, 134, 145, 160, 184, 230, 232, 256, 268, 290, 320, 335, 368, 460, 464, 536, 580, 640, 667, 670, 736, 920, 928, 1072, 1160, 1280, 1334, 1340, 1472, 1541, 1840, 1856, 1943, 2144, 2320, 2668, 2680, 2944, 3082, 3335, 3680, 3712, 3886, 4288, 4640, 5336, 5360, 5888, 6164, 6670, 7360, 7424, 7705, 7772, 8576, 9280, 9715, 10672, 10720, 12328, 13340, 14720, 15410, 15544, 17152, 18560, 19430, 21344, 21440, 24656, 26680, 29440, 30820, 31088, 37120, 38860, 42688, 42880, 44689, 49312, 53360, 61640, 62176, 77720, 85376, 85760, 89378, 98624, 106720, 123280, 124352, 155440, 170752, 178756, 197248, 213440, 223445, 246560, 248704, 310880, 357512, 394496, 426880, 446890, 493120, 497408, 621760, 715024, 853760, 893780, 986240, 1243520, 1430048, 1787560, 1972480, 2487040, 2860096, 3575120, 5720192, 7150240, 11440384, 14300480, 28600960, 57201920]

約数ペア:

[(1, 57201920), (2, 28600960), (4, 14300480), (5, 11440384), (8, 7150240), (10, 5720192), (16, 3575120), (20, 2860096), (23, 2487040), (29, 1972480), (32, 1787560), (40, 1430048), (46, 1243520), (58, 986240), (64, 893780), (67, 853760), (80, 715024), (92, 621760), (115, 497408), (116, 493120), (128, 446890), (134, 426880), (145, 394496), (160, 357512), (184, 310880), (230, 248704), (232, 246560), (256, 223445), (268, 213440), (290, 197248), (320, 178756), (335, 170752), (368, 155440), (460, 124352), (464, 123280), (536, 106720), (580, 98624), (640, 89378), (667, 85760), (670, 85376), (736, 77720), (920, 62176), (928, 61640), (1072, 53360), (1160, 49312), (1280, 44689), (1334, 42880), (1340, 42688), (1472, 38860), (1541, 37120), (1840, 31088), (1856, 30820), (1943, 29440), (2144, 26680), (2320, 24656), (2668, 21440), (2680, 21344), (2944, 19430), (3082, 18560), (3335, 17152), (3680, 15544), (3712, 15410), (3886, 14720), (4288, 13340), (4640, 12328), (5336, 10720), (5360, 10672), (5888, 9715), (6164, 9280), (6670, 8576), (7360, 7772), (7424, 7705)]