28471100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 71557920

約数和(自身を除く): 43086820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 89, 100, 140, 175, 178, 350, 356, 445, 457, 623, 700, 890, 914, 1246, 1780, 1828, 2225, 2285, 2492, 3115, 3199, 4450, 4570, 6230, 6398, 8900, 9140, 11425, 12460, 12796, 15575, 15995, 22850, 31150, 31990, 40673, 45700, 62300, 63980, 79975, 81346, 159950, 162692, 203365, 284711, 319900, 406730, 569422, 813460, 1016825, 1138844, 1423555, 2033650, 2847110, 4067300, 5694220, 7117775, 14235550, 28471100]

約数ペア:

[(1, 28471100), (2, 14235550), (4, 7117775), (5, 5694220), (7, 4067300), (10, 2847110), (14, 2033650), (20, 1423555), (25, 1138844), (28, 1016825), (35, 813460), (50, 569422), (70, 406730), (89, 319900), (100, 284711), (140, 203365), (175, 162692), (178, 159950), (350, 81346), (356, 79975), (445, 63980), (457, 62300), (623, 45700), (700, 40673), (890, 31990), (914, 31150), (1246, 22850), (1780, 15995), (1828, 15575), (2225, 12796), (2285, 12460), (2492, 11425), (3115, 9140), (3199, 8900), (4450, 6398), (4570, 6230)]