1291081250

素因数分解:

$2^1\times 5^5\times {\mathrm{251}}^1\times {\mathrm{823}}^1$

素因数の和:1101

約数の個数: 48

約数和(自身を含む): 2433219264

約数和(自身を除く): 1142138014

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 251, 502, 625, 823, 1250, 1255, 1646, 2510, 3125, 4115, 6250, 6275, 8230, 12550, 20575, 31375, 41150, 62750, 102875, 156875, 205750, 206573, 313750, 413146, 514375, 784375, 1028750, 1032865, 1568750, 2065730, 2571875, 5143750, 5164325, 10328650, 25821625, 51643250, 129108125, 258216250, 645540625, 1291081250]

約数ペア:

[(1, 1291081250), (2, 645540625), (5, 258216250), (10, 129108125), (25, 51643250), (50, 25821625), (125, 10328650), (250, 5164325), (251, 5143750), (502, 2571875), (625, 2065730), (823, 1568750), (1250, 1032865), (1255, 1028750), (1646, 784375), (2510, 514375), (3125, 413146), (4115, 313750), (6250, 206573), (6275, 205750), (8230, 156875), (12550, 102875), (20575, 62750), (31375, 41150)]