19882240

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{317}}^1$

素因数の和:352

約数の個数: 108

約数和(自身を含む): 55574316

約数和(自身を除く): 35692076

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 317, 320, 392, 448, 490, 560, 634, 640, 784, 896, 980, 1120, 1268, 1280, 1568, 1585, 1792, 1960, 2219, 2240, 2536, 3136, 3170, 3920, 4438, 4480, 5072, 6272, 6340, 7840, 8876, 8960, 10144, 11095, 12544, 12680, 15533, 15680, 17752, 20288, 22190, 25360, 31066, 31360, 35504, 40576, 44380, 50720, 62132, 62720, 71008, 77665, 81152, 88760, 101440, 124264, 142016, 155330, 177520, 202880, 248528, 284032, 310660, 355040, 405760, 497056, 568064, 621320, 710080, 994112, 1242640, 1420160, 1988224, 2485280, 2840320, 3976448, 4970560, 9941120, 19882240]

約数ペア:

[(1, 19882240), (2, 9941120), (4, 4970560), (5, 3976448), (7, 2840320), (8, 2485280), (10, 1988224), (14, 1420160), (16, 1242640), (20, 994112), (28, 710080), (32, 621320), (35, 568064), (40, 497056), (49, 405760), (56, 355040), (64, 310660), (70, 284032), (80, 248528), (98, 202880), (112, 177520), (128, 155330), (140, 142016), (160, 124264), (196, 101440), (224, 88760), (245, 81152), (256, 77665), (280, 71008), (317, 62720), (320, 62132), (392, 50720), (448, 44380), (490, 40576), (560, 35504), (634, 31360), (640, 31066), (784, 25360), (896, 22190), (980, 20288), (1120, 17752), (1268, 15680), (1280, 15533), (1568, 12680), (1585, 12544), (1792, 11095), (1960, 10144), (2219, 8960), (2240, 8876), (2536, 7840), (3136, 6340), (3170, 6272), (3920, 5072), (4438, 4480)]