20702805

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 34128000

約数和(自身を除く): 13425195

約数列:

[1, 3, 5, 15, 59, 149, 157, 177, 295, 447, 471, 745, 785, 885, 2235, 2355, 8791, 9263, 23393, 26373, 27789, 43955, 46315, 70179, 116965, 131865, 138945, 350895, 1380187, 4140561, 6900935, 20702805]

約数ペア:

[(1, 20702805), (3, 6900935), (5, 4140561), (15, 1380187), (59, 350895), (149, 138945), (157, 131865), (177, 116965), (295, 70179), (447, 46315), (471, 43955), (745, 27789), (785, 26373), (885, 23393), (2235, 9263), (2355, 8791)]