25051220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 54742800

約数和(自身を除く): 29691580

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 148, 185, 194, 349, 370, 388, 485, 698, 740, 970, 1396, 1745, 1940, 3490, 3589, 6980, 7178, 12913, 14356, 17945, 25826, 33853, 35890, 51652, 64565, 67706, 71780, 129130, 135412, 169265, 258260, 338530, 677060, 1252561, 2505122, 5010244, 6262805, 12525610, 25051220]

約数ペア:

[(1, 25051220), (2, 12525610), (4, 6262805), (5, 5010244), (10, 2505122), (20, 1252561), (37, 677060), (74, 338530), (97, 258260), (148, 169265), (185, 135412), (194, 129130), (349, 71780), (370, 67706), (388, 64565), (485, 51652), (698, 35890), (740, 33853), (970, 25826), (1396, 17945), (1745, 14356), (1940, 12913), (3490, 7178), (3589, 6980)]