20531300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 26965660

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 37, 50, 62, 74, 100, 124, 148, 155, 179, 185, 310, 358, 370, 620, 716, 740, 775, 895, 925, 1147, 1550, 1790, 1850, 2294, 3100, 3580, 3700, 4475, 4588, 5549, 5735, 6623, 8950, 11098, 11470, 13246, 17900, 22196, 22940, 26492, 27745, 28675, 33115, 55490, 57350, 66230, 110980, 114700, 132460, 138725, 165575, 205313, 277450, 331150, 410626, 554900, 662300, 821252, 1026565, 2053130, 4106260, 5132825, 10265650, 20531300]

約数ペア:

[(1, 20531300), (2, 10265650), (4, 5132825), (5, 4106260), (10, 2053130), (20, 1026565), (25, 821252), (31, 662300), (37, 554900), (50, 410626), (62, 331150), (74, 277450), (100, 205313), (124, 165575), (148, 138725), (155, 132460), (179, 114700), (185, 110980), (310, 66230), (358, 57350), (370, 55490), (620, 33115), (716, 28675), (740, 27745), (775, 26492), (895, 22940), (925, 22196), (1147, 17900), (1550, 13246), (1790, 11470), (1850, 11098), (2294, 8950), (3100, 6623), (3580, 5735), (3700, 5549), (4475, 4588)]