19883060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 43481424

約数和(自身を除く): 23598364

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 148, 185, 194, 277, 370, 388, 485, 554, 740, 970, 1108, 1385, 1940, 2770, 3589, 5540, 7178, 10249, 14356, 17945, 20498, 26869, 35890, 40996, 51245, 53738, 71780, 102490, 107476, 134345, 204980, 268690, 537380, 994153, 1988306, 3976612, 4970765, 9941530, 19883060]

約数ペア:

[(1, 19883060), (2, 9941530), (4, 4970765), (5, 3976612), (10, 1988306), (20, 994153), (37, 537380), (74, 268690), (97, 204980), (148, 134345), (185, 107476), (194, 102490), (277, 71780), (370, 53738), (388, 51245), (485, 40996), (554, 35890), (740, 26869), (970, 20498), (1108, 17945), (1385, 14356), (1940, 10249), (2770, 7178), (3589, 5540)]