20407800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:182

約数の個数: 192

約数和(自身を含む): 74638080

約数和(自身を除く): 54230280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 43, 50, 56, 60, 70, 75, 84, 86, 100, 105, 113, 120, 129, 140, 150, 168, 172, 175, 200, 210, 215, 226, 258, 280, 300, 301, 339, 344, 350, 420, 430, 452, 516, 525, 565, 600, 602, 645, 678, 700, 791, 840, 860, 903, 904, 1032, 1050, 1075, 1130, 1204, 1290, 1356, 1400, 1505, 1582, 1695, 1720, 1806, 2100, 2150, 2260, 2373, 2408, 2580, 2712, 2825, 3010, 3164, 3225, 3390, 3612, 3955, 4200, 4300, 4515, 4520, 4746, 4859, 5160, 5650, 6020, 6328, 6450, 6780, 7224, 7525, 7910, 8475, 8600, 9030, 9492, 9718, 11300, 11865, 12040, 12900, 13560, 14577, 15050, 15820, 16950, 18060, 18984, 19436, 19775, 22575, 22600, 23730, 24295, 25800, 29154, 30100, 31640, 33900, 34013, 36120, 38872, 39550, 45150, 47460, 48590, 58308, 59325, 60200, 67800, 68026, 72885, 79100, 90300, 94920, 97180, 102039, 116616, 118650, 121475, 136052, 145770, 158200, 170065, 180600, 194360, 204078, 237300, 242950, 272104, 291540, 340130, 364425, 408156, 474600, 485900, 510195, 583080, 680260, 728850, 816312, 850325, 971800, 1020390, 1360520, 1457700, 1700650, 2040780, 2550975, 2915400, 3401300, 4081560, 5101950, 6802600, 10203900, 20407800]

約数ペア:

[(1, 20407800), (2, 10203900), (3, 6802600), (4, 5101950), (5, 4081560), (6, 3401300), (7, 2915400), (8, 2550975), (10, 2040780), (12, 1700650), (14, 1457700), (15, 1360520), (20, 1020390), (21, 971800), (24, 850325), (25, 816312), (28, 728850), (30, 680260), (35, 583080), (40, 510195), (42, 485900), (43, 474600), (50, 408156), (56, 364425), (60, 340130), (70, 291540), (75, 272104), (84, 242950), (86, 237300), (100, 204078), (105, 194360), (113, 180600), (120, 170065), (129, 158200), (140, 145770), (150, 136052), (168, 121475), (172, 118650), (175, 116616), (200, 102039), (210, 97180), (215, 94920), (226, 90300), (258, 79100), (280, 72885), (300, 68026), (301, 67800), (339, 60200), (344, 59325), (350, 58308), (420, 48590), (430, 47460), (452, 45150), (516, 39550), (525, 38872), (565, 36120), (600, 34013), (602, 33900), (645, 31640), (678, 30100), (700, 29154), (791, 25800), (840, 24295), (860, 23730), (903, 22600), (904, 22575), (1032, 19775), (1050, 19436), (1075, 18984), (1130, 18060), (1204, 16950), (1290, 15820), (1356, 15050), (1400, 14577), (1505, 13560), (1582, 12900), (1695, 12040), (1720, 11865), (1806, 11300), (2100, 9718), (2150, 9492), (2260, 9030), (2373, 8600), (2408, 8475), (2580, 7910), (2712, 7525), (2825, 7224), (3010, 6780), (3164, 6450), (3225, 6328), (3390, 6020), (3612, 5650), (3955, 5160), (4200, 4859), (4300, 4746), (4515, 4520)]