81287850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{77417}}^1$

素因数の和:77439

約数の個数: 48

約数和(自身を含む): 230395968

約数和(自身を除く): 149108118

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 150, 175, 210, 350, 525, 1050, 77417, 154834, 232251, 387085, 464502, 541919, 774170, 1083838, 1161255, 1625757, 1935425, 2322510, 2709595, 3251514, 3870850, 5419190, 5806275, 8128785, 11612550, 13547975, 16257570, 27095950, 40643925, 81287850]

約数ペア:

[(1, 81287850), (2, 40643925), (3, 27095950), (5, 16257570), (6, 13547975), (7, 11612550), (10, 8128785), (14, 5806275), (15, 5419190), (21, 3870850), (25, 3251514), (30, 2709595), (35, 2322510), (42, 1935425), (50, 1625757), (70, 1161255), (75, 1083838), (105, 774170), (150, 541919), (175, 464502), (210, 387085), (350, 232251), (525, 154834), (1050, 77417)]