28235740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 64421280

約数和(自身を除く): 36185540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 829, 1310, 1658, 1703, 2620, 3316, 3406, 4145, 6812, 8290, 8515, 10777, 16580, 17030, 21554, 34060, 43108, 53885, 107770, 108599, 215540, 217198, 434396, 542995, 1085990, 1411787, 2171980, 2823574, 5647148, 7058935, 14117870, 28235740]

約数ペア:

[(1, 28235740), (2, 14117870), (4, 7058935), (5, 5647148), (10, 2823574), (13, 2171980), (20, 1411787), (26, 1085990), (52, 542995), (65, 434396), (130, 217198), (131, 215540), (260, 108599), (262, 107770), (524, 53885), (655, 43108), (829, 34060), (1310, 21554), (1658, 17030), (1703, 16580), (2620, 10777), (3316, 8515), (3406, 8290), (4145, 6812)]