28405910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{619}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 55308960

約数和(自身を除く): 26903050

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 353, 619, 706, 1238, 1765, 3095, 3530, 4589, 6190, 8047, 9178, 16094, 22945, 40235, 45890, 80470, 218507, 437014, 1092535, 2185070, 2840591, 5681182, 14202955, 28405910]

約数ペア:

[(1, 28405910), (2, 14202955), (5, 5681182), (10, 2840591), (13, 2185070), (26, 1092535), (65, 437014), (130, 218507), (353, 80470), (619, 45890), (706, 40235), (1238, 22945), (1765, 16094), (3095, 9178), (3530, 8047), (4589, 6190)]