291220270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{6473}}^1$

素因数の和:6900

約数の個数: 32

約数和(自身を含む): 573337440

約数和(自身を除く): 282117170

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 409, 818, 2045, 4090, 4499, 6473, 8998, 12946, 22495, 32365, 44990, 64730, 71203, 142406, 356015, 712030, 2647457, 5294914, 13237285, 26474570, 29122027, 58244054, 145610135, 291220270]

約数ペア:

[(1, 291220270), (2, 145610135), (5, 58244054), (10, 29122027), (11, 26474570), (22, 13237285), (55, 5294914), (110, 2647457), (409, 712030), (818, 356015), (2045, 142406), (4090, 71203), (4499, 64730), (6473, 44990), (8998, 32365), (12946, 22495)]