19508620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 43168608

約数和(自身を除く): 23659988

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 643, 740, 820, 1286, 1517, 2572, 3034, 3215, 6068, 6430, 7585, 12860, 15170, 23791, 26363, 30340, 47582, 52726, 95164, 105452, 118955, 131815, 237910, 263630, 475820, 527260, 975431, 1950862, 3901724, 4877155, 9754310, 19508620]

約数ペア:

[(1, 19508620), (2, 9754310), (4, 4877155), (5, 3901724), (10, 1950862), (20, 975431), (37, 527260), (41, 475820), (74, 263630), (82, 237910), (148, 131815), (164, 118955), (185, 105452), (205, 95164), (370, 52726), (410, 47582), (643, 30340), (740, 26363), (820, 23791), (1286, 15170), (1517, 12860), (2572, 7585), (3034, 6430), (3215, 6068)]