81643260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15289}}^1$

素因数の和:15390

約数の個数: 48

約数和(自身を含む): 231184800

約数和(自身を除く): 149541540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 5340, 15289, 30578, 45867, 61156, 76445, 91734, 152890, 183468, 229335, 305780, 458670, 917340, 1360721, 2721442, 4082163, 5442884, 6803605, 8164326, 13607210, 16328652, 20410815, 27214420, 40821630, 81643260]

約数ペア:

[(1, 81643260), (2, 40821630), (3, 27214420), (4, 20410815), (5, 16328652), (6, 13607210), (10, 8164326), (12, 6803605), (15, 5442884), (20, 4082163), (30, 2721442), (60, 1360721), (89, 917340), (178, 458670), (267, 305780), (356, 229335), (445, 183468), (534, 152890), (890, 91734), (1068, 76445), (1335, 61156), (1780, 45867), (2670, 30578), (5340, 15289)]