201906560

素因数分解:

$2^7\times 5^1\times {\mathrm{389}}^1\times {\mathrm{811}}^1$

素因数の和:1219

約数の個数: 64

約数和(自身を含む): 484520400

約数和(自身を除く): 282613840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 389, 640, 778, 811, 1556, 1622, 1945, 3112, 3244, 3890, 4055, 6224, 6488, 7780, 8110, 12448, 12976, 15560, 16220, 24896, 25952, 31120, 32440, 49792, 51904, 62240, 64880, 103808, 124480, 129760, 248960, 259520, 315479, 519040, 630958, 1261916, 1577395, 2523832, 3154790, 5047664, 6309580, 10095328, 12619160, 20190656, 25238320, 40381312, 50476640, 100953280, 201906560]

約数ペア:

[(1, 201906560), (2, 100953280), (4, 50476640), (5, 40381312), (8, 25238320), (10, 20190656), (16, 12619160), (20, 10095328), (32, 6309580), (40, 5047664), (64, 3154790), (80, 2523832), (128, 1577395), (160, 1261916), (320, 630958), (389, 519040), (640, 315479), (778, 259520), (811, 248960), (1556, 129760), (1622, 124480), (1945, 103808), (3112, 64880), (3244, 62240), (3890, 51904), (4055, 49792), (6224, 32440), (6488, 31120), (7780, 25952), (8110, 24896), (12448, 16220), (12976, 15560)]