81278610

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1109}}^1$

素因数の和:1475

約数の個数: 64

約数和(自身を含む): 223776000

約数和(自身を除く): 142497390

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 349, 698, 1047, 1109, 1745, 2094, 2218, 2443, 3327, 3490, 4886, 5235, 5545, 6654, 7329, 7763, 10470, 11090, 12215, 14658, 15526, 16635, 23289, 24430, 33270, 36645, 38815, 46578, 73290, 77630, 116445, 232890, 387041, 774082, 1161123, 1935205, 2322246, 2709287, 3870410, 5418574, 5805615, 8127861, 11611230, 13546435, 16255722, 27092870, 40639305, 81278610]

約数ペア:

[(1, 81278610), (2, 40639305), (3, 27092870), (5, 16255722), (6, 13546435), (7, 11611230), (10, 8127861), (14, 5805615), (15, 5418574), (21, 3870410), (30, 2709287), (35, 2322246), (42, 1935205), (70, 1161123), (105, 774082), (210, 387041), (349, 232890), (698, 116445), (1047, 77630), (1109, 73290), (1745, 46578), (2094, 38815), (2218, 36645), (2443, 33270), (3327, 24430), (3490, 23289), (4886, 16635), (5235, 15526), (5545, 14658), (6654, 12215), (7329, 11090), (7763, 10470)]