19047500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:444

約数の個数: 60

約数和(自身を含む): 43954680

約数和(自身を除く): 24907180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 401, 475, 500, 625, 802, 950, 1250, 1604, 1900, 2005, 2375, 2500, 4010, 4750, 7619, 8020, 9500, 10025, 11875, 15238, 20050, 23750, 30476, 38095, 40100, 47500, 50125, 76190, 100250, 152380, 190475, 200500, 250625, 380950, 501250, 761900, 952375, 1002500, 1904750, 3809500, 4761875, 9523750, 19047500]

約数ペア:

[(1, 19047500), (2, 9523750), (4, 4761875), (5, 3809500), (10, 1904750), (19, 1002500), (20, 952375), (25, 761900), (38, 501250), (50, 380950), (76, 250625), (95, 200500), (100, 190475), (125, 152380), (190, 100250), (250, 76190), (380, 50125), (401, 47500), (475, 40100), (500, 38095), (625, 30476), (802, 23750), (950, 20050), (1250, 15238), (1604, 11875), (1900, 10025), (2005, 9500), (2375, 8020), (2500, 7619), (4010, 4750)]