18544460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 43794240

約数和(自身を除く): 25249780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 97, 110, 121, 158, 194, 220, 242, 316, 388, 395, 484, 485, 605, 790, 869, 970, 1067, 1210, 1580, 1738, 1940, 2134, 2420, 3476, 4268, 4345, 5335, 7663, 8690, 9559, 10670, 11737, 15326, 17380, 19118, 21340, 23474, 30652, 38236, 38315, 46948, 47795, 58685, 76630, 84293, 95590, 117370, 153260, 168586, 191180, 234740, 337172, 421465, 842930, 927223, 1685860, 1854446, 3708892, 4636115, 9272230, 18544460]

約数ペア:

[(1, 18544460), (2, 9272230), (4, 4636115), (5, 3708892), (10, 1854446), (11, 1685860), (20, 927223), (22, 842930), (44, 421465), (55, 337172), (79, 234740), (97, 191180), (110, 168586), (121, 153260), (158, 117370), (194, 95590), (220, 84293), (242, 76630), (316, 58685), (388, 47795), (395, 46948), (484, 38315), (485, 38236), (605, 30652), (790, 23474), (869, 21340), (970, 19118), (1067, 17380), (1210, 15326), (1580, 11737), (1738, 10670), (1940, 9559), (2134, 8690), (2420, 7663), (3476, 5335), (4268, 4345)]