16803920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:868

約数の個数: 80

約数和(自身を含む): 45913728

約数和(自身を除く): 29109808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 811, 1036, 1295, 1480, 1622, 2072, 2590, 2960, 3244, 4055, 4144, 5180, 5677, 6488, 8110, 10360, 11354, 12976, 16220, 20720, 22708, 28385, 30007, 32440, 45416, 56770, 60014, 64880, 90832, 113540, 120028, 150035, 210049, 227080, 240056, 300070, 420098, 454160, 480112, 600140, 840196, 1050245, 1200280, 1680392, 2100490, 2400560, 3360784, 4200980, 8401960, 16803920]

約数ペア:

[(1, 16803920), (2, 8401960), (4, 4200980), (5, 3360784), (7, 2400560), (8, 2100490), (10, 1680392), (14, 1200280), (16, 1050245), (20, 840196), (28, 600140), (35, 480112), (37, 454160), (40, 420098), (56, 300070), (70, 240056), (74, 227080), (80, 210049), (112, 150035), (140, 120028), (148, 113540), (185, 90832), (259, 64880), (280, 60014), (296, 56770), (370, 45416), (518, 32440), (560, 30007), (592, 28385), (740, 22708), (811, 20720), (1036, 16220), (1295, 12976), (1480, 11354), (1622, 10360), (2072, 8110), (2590, 6488), (2960, 5677), (3244, 5180), (4055, 4144)]