18691450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{389}}^1$

素因数の和:463

約数の個数: 36

約数和(自身を含む): 36016110

約数和(自身を除く): 17324660

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 389, 775, 778, 961, 1550, 1922, 1945, 3890, 4805, 9610, 9725, 12059, 19450, 24025, 24118, 48050, 60295, 120590, 301475, 373829, 602950, 747658, 1869145, 3738290, 9345725, 18691450]

約数ペア:

[(1, 18691450), (2, 9345725), (5, 3738290), (10, 1869145), (25, 747658), (31, 602950), (50, 373829), (62, 301475), (155, 120590), (310, 60295), (389, 48050), (775, 24118), (778, 24025), (961, 19450), (1550, 12059), (1922, 9725), (1945, 9610), (3890, 4805)]