31487500

素因数分解:

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

素因数の和:269

約数の個数: 72

約数和(自身を含む): 75463920

約数和(自身を除く): 43976420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 229, 250, 275, 458, 500, 550, 625, 916, 1100, 1145, 1250, 1375, 2290, 2500, 2519, 2750, 3125, 4580, 5038, 5500, 5725, 6250, 6875, 10076, 11450, 12500, 12595, 13750, 22900, 25190, 27500, 28625, 34375, 50380, 57250, 62975, 68750, 114500, 125950, 137500, 143125, 251900, 286250, 314875, 572500, 629750, 715625, 1259500, 1431250, 1574375, 2862500, 3148750, 6297500, 7871875, 15743750, 31487500]

約数ペア:

[(1, 31487500), (2, 15743750), (4, 7871875), (5, 6297500), (10, 3148750), (11, 2862500), (20, 1574375), (22, 1431250), (25, 1259500), (44, 715625), (50, 629750), (55, 572500), (100, 314875), (110, 286250), (125, 251900), (220, 143125), (229, 137500), (250, 125950), (275, 114500), (458, 68750), (500, 62975), (550, 57250), (625, 50380), (916, 34375), (1100, 28625), (1145, 27500), (1250, 25190), (1375, 22900), (2290, 13750), (2500, 12595), (2519, 12500), (2750, 11450), (3125, 10076), (4580, 6875), (5038, 6250), (5500, 5725)]