8212520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 19699200

約数和(自身を除く): 11486680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 179, 185, 248, 296, 310, 358, 370, 620, 716, 740, 895, 1147, 1240, 1432, 1480, 1790, 2294, 3580, 4588, 5549, 5735, 6623, 7160, 9176, 11098, 11470, 13246, 22196, 22940, 26492, 27745, 33115, 44392, 45880, 52984, 55490, 66230, 110980, 132460, 205313, 221960, 264920, 410626, 821252, 1026565, 1642504, 2053130, 4106260, 8212520]

約数ペア:

[(1, 8212520), (2, 4106260), (4, 2053130), (5, 1642504), (8, 1026565), (10, 821252), (20, 410626), (31, 264920), (37, 221960), (40, 205313), (62, 132460), (74, 110980), (124, 66230), (148, 55490), (155, 52984), (179, 45880), (185, 44392), (248, 33115), (296, 27745), (310, 26492), (358, 22940), (370, 22196), (620, 13246), (716, 11470), (740, 11098), (895, 9176), (1147, 7160), (1240, 6623), (1432, 5735), (1480, 5549), (1790, 4588), (2294, 3580)]