28351755

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{397}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 52822560

約数和(自身を除く): 24470805

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 397, 529, 621, 1035, 1191, 1587, 1985, 2645, 3105, 3573, 4761, 5955, 7935, 9131, 10719, 14283, 17865, 23805, 27393, 45655, 53595, 71415, 82179, 136965, 210013, 246537, 410895, 630039, 1050065, 1232685, 1890117, 3150195, 5670351, 9450585, 28351755]

約数ペア:

[(1, 28351755), (3, 9450585), (5, 5670351), (9, 3150195), (15, 1890117), (23, 1232685), (27, 1050065), (45, 630039), (69, 410895), (115, 246537), (135, 210013), (207, 136965), (345, 82179), (397, 71415), (529, 53595), (621, 45655), (1035, 27393), (1191, 23805), (1587, 17865), (1985, 14283), (2645, 10719), (3105, 9131), (3573, 7935), (4761, 5955)]