490500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{109}}^1$

素因数の和:134

約数の個数: 72

約数和(自身を含む): 1561560

約数和(自身を除く): 1071060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 109, 125, 150, 180, 218, 225, 250, 300, 327, 375, 436, 450, 500, 545, 654, 750, 900, 981, 1090, 1125, 1308, 1500, 1635, 1962, 2180, 2250, 2725, 3270, 3924, 4500, 4905, 5450, 6540, 8175, 9810, 10900, 13625, 16350, 19620, 24525, 27250, 32700, 40875, 49050, 54500, 81750, 98100, 122625, 163500, 245250, 490500]

約数ペア:

[(1, 490500), (2, 245250), (3, 163500), (4, 122625), (5, 98100), (6, 81750), (9, 54500), (10, 49050), (12, 40875), (15, 32700), (18, 27250), (20, 24525), (25, 19620), (30, 16350), (36, 13625), (45, 10900), (50, 9810), (60, 8175), (75, 6540), (90, 5450), (100, 4905), (109, 4500), (125, 3924), (150, 3270), (180, 2725), (218, 2250), (225, 2180), (250, 1962), (300, 1635), (327, 1500), (375, 1308), (436, 1125), (450, 1090), (500, 981), (545, 900), (654, 750)]