82005680

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4289}}^1$

素因数の和:4541

約数の個数: 40

約数和(自身を含む): 191505600

約数和(自身を除く): 109499920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4289, 4780, 8578, 9560, 17156, 19120, 21445, 34312, 42890, 68624, 85780, 171560, 343120, 1025071, 2050142, 4100284, 5125355, 8200568, 10250710, 16401136, 20501420, 41002840, 82005680]

約数ペア:

[(1, 82005680), (2, 41002840), (4, 20501420), (5, 16401136), (8, 10250710), (10, 8200568), (16, 5125355), (20, 4100284), (40, 2050142), (80, 1025071), (239, 343120), (478, 171560), (956, 85780), (1195, 68624), (1912, 42890), (2390, 34312), (3824, 21445), (4289, 19120), (4780, 17156), (8578, 9560)]