131480920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106033}}^1$

素因数の和:106075

約数の個数: 32

約数和(自身を含む): 305377920

約数和(自身を除く): 173897000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 106033, 212066, 424132, 530165, 848264, 1060330, 2120660, 3287023, 4241320, 6574046, 13148092, 16435115, 26296184, 32870230, 65740460, 131480920]

約数ペア:

[(1, 131480920), (2, 65740460), (4, 32870230), (5, 26296184), (8, 16435115), (10, 13148092), (20, 6574046), (31, 4241320), (40, 3287023), (62, 2120660), (124, 1060330), (155, 848264), (248, 530165), (310, 424132), (620, 212066), (1240, 106033)]