221389600

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 569963520

約数和(自身を除く): 348573920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 79, 80, 100, 113, 124, 155, 158, 160, 200, 226, 248, 310, 316, 395, 400, 452, 496, 565, 620, 632, 775, 790, 800, 904, 992, 1130, 1240, 1264, 1550, 1580, 1808, 1975, 2260, 2449, 2480, 2528, 2825, 3100, 3160, 3503, 3616, 3950, 4520, 4898, 4960, 5650, 6200, 6320, 7006, 7900, 8927, 9040, 9796, 11300, 12245, 12400, 12640, 14012, 15800, 17515, 17854, 18080, 19592, 22600, 24490, 24800, 28024, 31600, 35030, 35708, 39184, 44635, 45200, 48980, 56048, 61225, 63200, 70060, 71416, 78368, 87575, 89270, 90400, 97960, 112096, 122450, 140120, 142832, 175150, 178540, 195920, 223175, 244900, 276737, 280240, 285664, 350300, 357080, 391840, 446350, 489800, 553474, 560480, 700600, 714160, 892700, 979600, 1106948, 1383685, 1401200, 1428320, 1785400, 1959200, 2213896, 2767370, 2802400, 3570800, 4427792, 5534740, 6918425, 7141600, 8855584, 11069480, 13836850, 22138960, 27673700, 44277920, 55347400, 110694800, 221389600]

約数ペア:

[(1, 221389600), (2, 110694800), (4, 55347400), (5, 44277920), (8, 27673700), (10, 22138960), (16, 13836850), (20, 11069480), (25, 8855584), (31, 7141600), (32, 6918425), (40, 5534740), (50, 4427792), (62, 3570800), (79, 2802400), (80, 2767370), (100, 2213896), (113, 1959200), (124, 1785400), (155, 1428320), (158, 1401200), (160, 1383685), (200, 1106948), (226, 979600), (248, 892700), (310, 714160), (316, 700600), (395, 560480), (400, 553474), (452, 489800), (496, 446350), (565, 391840), (620, 357080), (632, 350300), (775, 285664), (790, 280240), (800, 276737), (904, 244900), (992, 223175), (1130, 195920), (1240, 178540), (1264, 175150), (1550, 142832), (1580, 140120), (1808, 122450), (1975, 112096), (2260, 97960), (2449, 90400), (2480, 89270), (2528, 87575), (2825, 78368), (3100, 71416), (3160, 70060), (3503, 63200), (3616, 61225), (3950, 56048), (4520, 48980), (4898, 45200), (4960, 44635), (5650, 39184), (6200, 35708), (6320, 35030), (7006, 31600), (7900, 28024), (8927, 24800), (9040, 24490), (9796, 22600), (11300, 19592), (12245, 18080), (12400, 17854), (12640, 17515), (14012, 15800)]