65455220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{449}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 142203600

約数和(自身を除く): 76748380

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 197, 370, 394, 449, 740, 788, 898, 985, 1796, 1970, 2245, 3940, 4490, 7289, 8980, 14578, 16613, 29156, 33226, 36445, 66452, 72890, 83065, 88453, 145780, 166130, 176906, 332260, 353812, 442265, 884530, 1769060, 3272761, 6545522, 13091044, 16363805, 32727610, 65455220]

約数ペア:

[(1, 65455220), (2, 32727610), (4, 16363805), (5, 13091044), (10, 6545522), (20, 3272761), (37, 1769060), (74, 884530), (148, 442265), (185, 353812), (197, 332260), (370, 176906), (394, 166130), (449, 145780), (740, 88453), (788, 83065), (898, 72890), (985, 66452), (1796, 36445), (1970, 33226), (2245, 29156), (3940, 16613), (4490, 14578), (7289, 8980)]