19018450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 39015360

約数和(自身を除く): 19996910

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 151, 229, 275, 302, 458, 550, 755, 1145, 1510, 1661, 2290, 2519, 3322, 3775, 5038, 5725, 7550, 8305, 11450, 12595, 16610, 25190, 34579, 41525, 62975, 69158, 83050, 125950, 172895, 345790, 380369, 760738, 864475, 1728950, 1901845, 3803690, 9509225, 19018450]

約数ペア:

[(1, 19018450), (2, 9509225), (5, 3803690), (10, 1901845), (11, 1728950), (22, 864475), (25, 760738), (50, 380369), (55, 345790), (110, 172895), (151, 125950), (229, 83050), (275, 69158), (302, 62975), (458, 41525), (550, 34579), (755, 25190), (1145, 16610), (1510, 12595), (1661, 11450), (2290, 8305), (2519, 7550), (3322, 5725), (3775, 5038)]