19802860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 108

約数和(自身を含む): 53491536

約数和(自身を除く): 33688676

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 167, 196, 220, 242, 245, 308, 334, 385, 484, 490, 539, 605, 668, 770, 835, 847, 980, 1078, 1169, 1210, 1540, 1670, 1694, 1837, 2156, 2338, 2420, 2695, 3340, 3388, 3674, 4235, 4676, 5390, 5845, 5929, 7348, 8183, 8470, 9185, 10780, 11690, 11858, 12859, 16366, 16940, 18370, 20207, 23380, 23716, 25718, 29645, 32732, 36740, 40414, 40915, 51436, 59290, 64295, 80828, 81830, 90013, 101035, 118580, 128590, 141449, 163660, 180026, 202070, 257180, 282898, 360052, 404140, 450065, 565796, 707245, 900130, 990143, 1414490, 1800260, 1980286, 2828980, 3960572, 4950715, 9901430, 19802860]

約数ペア:

[(1, 19802860), (2, 9901430), (4, 4950715), (5, 3960572), (7, 2828980), (10, 1980286), (11, 1800260), (14, 1414490), (20, 990143), (22, 900130), (28, 707245), (35, 565796), (44, 450065), (49, 404140), (55, 360052), (70, 282898), (77, 257180), (98, 202070), (110, 180026), (121, 163660), (140, 141449), (154, 128590), (167, 118580), (196, 101035), (220, 90013), (242, 81830), (245, 80828), (308, 64295), (334, 59290), (385, 51436), (484, 40915), (490, 40414), (539, 36740), (605, 32732), (668, 29645), (770, 25718), (835, 23716), (847, 23380), (980, 20207), (1078, 18370), (1169, 16940), (1210, 16366), (1540, 12859), (1670, 11858), (1694, 11690), (1837, 10780), (2156, 9185), (2338, 8470), (2420, 8183), (2695, 7348), (3340, 5929), (3388, 5845), (3674, 5390), (4235, 4676)]