20880690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31374030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 59, 94, 118, 141, 177, 235, 251, 282, 295, 354, 470, 502, 590, 705, 753, 885, 1255, 1410, 1506, 1770, 2510, 2773, 3765, 5546, 7530, 8319, 11797, 13865, 14809, 16638, 23594, 27730, 29618, 35391, 41595, 44427, 58985, 70782, 74045, 83190, 88854, 117970, 148090, 176955, 222135, 353910, 444270, 696023, 1392046, 2088069, 3480115, 4176138, 6960230, 10440345, 20880690]

約数ペア:

[(1, 20880690), (2, 10440345), (3, 6960230), (5, 4176138), (6, 3480115), (10, 2088069), (15, 1392046), (30, 696023), (47, 444270), (59, 353910), (94, 222135), (118, 176955), (141, 148090), (177, 117970), (235, 88854), (251, 83190), (282, 74045), (295, 70782), (354, 58985), (470, 44427), (502, 41595), (590, 35391), (705, 29618), (753, 27730), (885, 23594), (1255, 16638), (1410, 14809), (1506, 13865), (1770, 11797), (2510, 8319), (2773, 7530), (3765, 5546)]