208797440

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1039}}^1$

素因数の和:1217

約数の個数: 72

約数和(自身を含む): 503805120

約数和(自身を除く): 295007680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 628, 640, 785, 1039, 1256, 1280, 1570, 2078, 2512, 3140, 4156, 5024, 5195, 6280, 8312, 10048, 10390, 12560, 16624, 20096, 20780, 25120, 33248, 40192, 41560, 50240, 66496, 83120, 100480, 132992, 163123, 166240, 200960, 265984, 326246, 332480, 652492, 664960, 815615, 1304984, 1329920, 1631230, 2609968, 3262460, 5219936, 6524920, 10439872, 13049840, 20879744, 26099680, 41759488, 52199360, 104398720, 208797440]

約数ペア:

[(1, 208797440), (2, 104398720), (4, 52199360), (5, 41759488), (8, 26099680), (10, 20879744), (16, 13049840), (20, 10439872), (32, 6524920), (40, 5219936), (64, 3262460), (80, 2609968), (128, 1631230), (157, 1329920), (160, 1304984), (256, 815615), (314, 664960), (320, 652492), (628, 332480), (640, 326246), (785, 265984), (1039, 200960), (1256, 166240), (1280, 163123), (1570, 132992), (2078, 100480), (2512, 83120), (3140, 66496), (4156, 50240), (5024, 41560), (5195, 40192), (6280, 33248), (8312, 25120), (10048, 20780), (10390, 20096), (12560, 16624)]