20249280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 168

約数和(自身を含む): 71323200

約数和(自身を除く): 51073920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 79, 80, 89, 90, 96, 120, 144, 158, 160, 178, 180, 192, 237, 240, 267, 288, 316, 320, 356, 360, 395, 445, 474, 480, 534, 576, 632, 711, 712, 720, 790, 801, 890, 948, 960, 1068, 1185, 1264, 1335, 1422, 1424, 1440, 1580, 1602, 1780, 1896, 2136, 2370, 2528, 2670, 2844, 2848, 2880, 3160, 3204, 3555, 3560, 3792, 4005, 4272, 4740, 5056, 5340, 5688, 5696, 6320, 6408, 7031, 7110, 7120, 7584, 8010, 8544, 9480, 10680, 11376, 12640, 12816, 14062, 14220, 14240, 15168, 16020, 17088, 18960, 21093, 21360, 22752, 25280, 25632, 28124, 28440, 28480, 32040, 35155, 37920, 42186, 42720, 45504, 51264, 56248, 56880, 63279, 64080, 70310, 75840, 84372, 85440, 105465, 112496, 113760, 126558, 128160, 140620, 168744, 210930, 224992, 227520, 253116, 256320, 281240, 316395, 337488, 421860, 449984, 506232, 562480, 632790, 674976, 843720, 1012464, 1124960, 1265580, 1349952, 1687440, 2024928, 2249920, 2531160, 3374880, 4049856, 5062320, 6749760, 10124640, 20249280]

約数ペア:

[(1, 20249280), (2, 10124640), (3, 6749760), (4, 5062320), (5, 4049856), (6, 3374880), (8, 2531160), (9, 2249920), (10, 2024928), (12, 1687440), (15, 1349952), (16, 1265580), (18, 1124960), (20, 1012464), (24, 843720), (30, 674976), (32, 632790), (36, 562480), (40, 506232), (45, 449984), (48, 421860), (60, 337488), (64, 316395), (72, 281240), (79, 256320), (80, 253116), (89, 227520), (90, 224992), (96, 210930), (120, 168744), (144, 140620), (158, 128160), (160, 126558), (178, 113760), (180, 112496), (192, 105465), (237, 85440), (240, 84372), (267, 75840), (288, 70310), (316, 64080), (320, 63279), (356, 56880), (360, 56248), (395, 51264), (445, 45504), (474, 42720), (480, 42186), (534, 37920), (576, 35155), (632, 32040), (711, 28480), (712, 28440), (720, 28124), (790, 25632), (801, 25280), (890, 22752), (948, 21360), (960, 21093), (1068, 18960), (1185, 17088), (1264, 16020), (1335, 15168), (1422, 14240), (1424, 14220), (1440, 14062), (1580, 12816), (1602, 12640), (1780, 11376), (1896, 10680), (2136, 9480), (2370, 8544), (2528, 8010), (2670, 7584), (2844, 7120), (2848, 7110), (2880, 7031), (3160, 6408), (3204, 6320), (3555, 5696), (3560, 5688), (3792, 5340), (4005, 5056), (4272, 4740)]