20148800

素因数分解:

$2^6\times 5^2\times 7^2\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 126

約数和(自身を含む): 57897522

約数和(自身を除く): 37748722

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 257, 280, 320, 350, 392, 400, 448, 490, 514, 560, 700, 784, 800, 980, 1028, 1120, 1225, 1285, 1400, 1568, 1600, 1799, 1960, 2056, 2240, 2450, 2570, 2800, 3136, 3598, 3920, 4112, 4900, 5140, 5600, 6425, 7196, 7840, 8224, 8995, 9800, 10280, 11200, 12593, 12850, 14392, 15680, 16448, 17990, 19600, 20560, 25186, 25700, 28784, 35980, 39200, 41120, 44975, 50372, 51400, 57568, 62965, 71960, 78400, 82240, 89950, 100744, 102800, 115136, 125930, 143920, 179900, 201488, 205600, 251860, 287840, 314825, 359800, 402976, 411200, 503720, 575680, 629650, 719600, 805952, 1007440, 1259300, 1439200, 2014880, 2518600, 2878400, 4029760, 5037200, 10074400, 20148800]

約数ペア:

[(1, 20148800), (2, 10074400), (4, 5037200), (5, 4029760), (7, 2878400), (8, 2518600), (10, 2014880), (14, 1439200), (16, 1259300), (20, 1007440), (25, 805952), (28, 719600), (32, 629650), (35, 575680), (40, 503720), (49, 411200), (50, 402976), (56, 359800), (64, 314825), (70, 287840), (80, 251860), (98, 205600), (100, 201488), (112, 179900), (140, 143920), (160, 125930), (175, 115136), (196, 102800), (200, 100744), (224, 89950), (245, 82240), (257, 78400), (280, 71960), (320, 62965), (350, 57568), (392, 51400), (400, 50372), (448, 44975), (490, 41120), (514, 39200), (560, 35980), (700, 28784), (784, 25700), (800, 25186), (980, 20560), (1028, 19600), (1120, 17990), (1225, 16448), (1285, 15680), (1400, 14392), (1568, 12850), (1600, 12593), (1799, 11200), (1960, 10280), (2056, 9800), (2240, 8995), (2450, 8224), (2570, 7840), (2800, 7196), (3136, 6425), (3598, 5600), (3920, 5140), (4112, 4900)]