19452380

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 42542976

約数和(自身を除く): 23090596

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 148, 185, 194, 271, 370, 388, 485, 542, 740, 970, 1084, 1355, 1940, 2710, 3589, 5420, 7178, 10027, 14356, 17945, 20054, 26287, 35890, 40108, 50135, 52574, 71780, 100270, 105148, 131435, 200540, 262870, 525740, 972619, 1945238, 3890476, 4863095, 9726190, 19452380]

約数ペア:

[(1, 19452380), (2, 9726190), (4, 4863095), (5, 3890476), (10, 1945238), (20, 972619), (37, 525740), (74, 262870), (97, 200540), (148, 131435), (185, 105148), (194, 100270), (271, 71780), (370, 52574), (388, 50135), (485, 40108), (542, 35890), (740, 26287), (970, 20054), (1084, 17945), (1355, 14356), (1940, 10027), (2710, 7178), (3589, 5420)]