388545140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{5413}}^1$

素因数の和:5556

約数の個数: 48

約数和(自身を含む): 846792912

約数和(自身を除く): 458247772

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 148, 185, 194, 370, 388, 485, 740, 970, 1940, 3589, 5413, 7178, 10826, 14356, 17945, 21652, 27065, 35890, 54130, 71780, 108260, 200281, 400562, 525061, 801124, 1001405, 1050122, 2002810, 2100244, 2625305, 4005620, 5250610, 10501220, 19427257, 38854514, 77709028, 97136285, 194272570, 388545140]

約数ペア:

[(1, 388545140), (2, 194272570), (4, 97136285), (5, 77709028), (10, 38854514), (20, 19427257), (37, 10501220), (74, 5250610), (97, 4005620), (148, 2625305), (185, 2100244), (194, 2002810), (370, 1050122), (388, 1001405), (485, 801124), (740, 525061), (970, 400562), (1940, 200281), (3589, 108260), (5413, 71780), (7178, 54130), (10826, 35890), (14356, 27065), (17945, 21652)]