19564920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54347}}^1$

素因数の和:54364

約数の個数: 48

約数和(自身を含む): 63587160

約数和(自身を除く): 44022240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54347, 108694, 163041, 217388, 271735, 326082, 434776, 489123, 543470, 652164, 815205, 978246, 1086940, 1304328, 1630410, 1956492, 2173880, 2445615, 3260820, 3912984, 4891230, 6521640, 9782460, 19564920]

約数ペア:

[(1, 19564920), (2, 9782460), (3, 6521640), (4, 4891230), (5, 3912984), (6, 3260820), (8, 2445615), (9, 2173880), (10, 1956492), (12, 1630410), (15, 1304328), (18, 1086940), (20, 978246), (24, 815205), (30, 652164), (36, 543470), (40, 489123), (45, 434776), (60, 326082), (72, 271735), (90, 217388), (120, 163041), (180, 108694), (360, 54347)]