28784470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20129}}^1$

素因数の和:20160

約数の個数: 32

約数和(自身を含む): 60873120

約数和(自身を除く): 32088650

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 20129, 40258, 100645, 201290, 221419, 261677, 442838, 523354, 1107095, 1308385, 2214190, 2616770, 2878447, 5756894, 14392235, 28784470]

約数ペア:

[(1, 28784470), (2, 14392235), (5, 5756894), (10, 2878447), (11, 2616770), (13, 2214190), (22, 1308385), (26, 1107095), (55, 523354), (65, 442838), (110, 261677), (130, 221419), (143, 201290), (286, 100645), (715, 40258), (1430, 20129)]