20429890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3833}}^1$

素因数の和:3894

約数の個数: 32

約数和(自身を含む): 40579056

約数和(自身を除く): 20149166

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 3833, 5330, 7666, 19165, 38330, 49829, 99658, 157153, 249145, 314306, 498290, 785765, 1571530, 2042989, 4085978, 10214945, 20429890]

約数ペア:

[(1, 20429890), (2, 10214945), (5, 4085978), (10, 2042989), (13, 1571530), (26, 785765), (41, 498290), (65, 314306), (82, 249145), (130, 157153), (205, 99658), (410, 49829), (533, 38330), (1066, 19165), (2665, 7666), (3833, 5330)]