28705095

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 53239680

約数和(自身を除く): 24534585

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 157, 239, 255, 471, 717, 765, 785, 1195, 1413, 2151, 2355, 2669, 3585, 4063, 7065, 8007, 10755, 12189, 13345, 20315, 24021, 36567, 37523, 40035, 60945, 112569, 120105, 182835, 187615, 337707, 562845, 637891, 1688535, 1913673, 3189455, 5741019, 9568365, 28705095]

約数ペア:

[(1, 28705095), (3, 9568365), (5, 5741019), (9, 3189455), (15, 1913673), (17, 1688535), (45, 637891), (51, 562845), (85, 337707), (153, 187615), (157, 182835), (239, 120105), (255, 112569), (471, 60945), (717, 40035), (765, 37523), (785, 36567), (1195, 24021), (1413, 20315), (2151, 13345), (2355, 12189), (2669, 10755), (3585, 8007), (4063, 7065)]