28618220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 62270208

約数和(自身を除く): 33651988

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 107, 172, 214, 215, 311, 428, 430, 535, 622, 860, 1070, 1244, 1555, 2140, 3110, 4601, 6220, 9202, 13373, 18404, 23005, 26746, 33277, 46010, 53492, 66554, 66865, 92020, 133108, 133730, 166385, 267460, 332770, 665540, 1430911, 2861822, 5723644, 7154555, 14309110, 28618220]

約数ペア:

[(1, 28618220), (2, 14309110), (4, 7154555), (5, 5723644), (10, 2861822), (20, 1430911), (43, 665540), (86, 332770), (107, 267460), (172, 166385), (214, 133730), (215, 133108), (311, 92020), (428, 66865), (430, 66554), (535, 53492), (622, 46010), (860, 33277), (1070, 26746), (1244, 23005), (1555, 18404), (2140, 13373), (3110, 9202), (4601, 6220)]