20907700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 50309280

約数和(自身を除く): 29401580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 83, 100, 110, 166, 220, 229, 275, 332, 415, 458, 550, 830, 913, 916, 1100, 1145, 1660, 1826, 2075, 2290, 2519, 3652, 4150, 4565, 4580, 5038, 5725, 8300, 9130, 10076, 11450, 12595, 18260, 19007, 22825, 22900, 25190, 38014, 45650, 50380, 62975, 76028, 91300, 95035, 125950, 190070, 209077, 251900, 380140, 418154, 475175, 836308, 950350, 1045385, 1900700, 2090770, 4181540, 5226925, 10453850, 20907700]

約数ペア:

[(1, 20907700), (2, 10453850), (4, 5226925), (5, 4181540), (10, 2090770), (11, 1900700), (20, 1045385), (22, 950350), (25, 836308), (44, 475175), (50, 418154), (55, 380140), (83, 251900), (100, 209077), (110, 190070), (166, 125950), (220, 95035), (229, 91300), (275, 76028), (332, 62975), (415, 50380), (458, 45650), (550, 38014), (830, 25190), (913, 22900), (916, 22825), (1100, 19007), (1145, 18260), (1660, 12595), (1826, 11450), (2075, 10076), (2290, 9130), (2519, 8300), (3652, 5725), (4150, 5038), (4565, 4580)]