20069500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 29463620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 89, 100, 110, 125, 164, 178, 205, 220, 250, 275, 356, 410, 445, 451, 500, 550, 820, 890, 902, 979, 1025, 1100, 1375, 1780, 1804, 1958, 2050, 2225, 2255, 2750, 3649, 3916, 4100, 4450, 4510, 4895, 5125, 5500, 7298, 8900, 9020, 9790, 10250, 11125, 11275, 14596, 18245, 19580, 20500, 22250, 22550, 24475, 36490, 40139, 44500, 45100, 48950, 56375, 72980, 80278, 91225, 97900, 112750, 122375, 160556, 182450, 200695, 225500, 244750, 364900, 401390, 456125, 489500, 802780, 912250, 1003475, 1824500, 2006950, 4013900, 5017375, 10034750, 20069500]

約数ペア:

[(1, 20069500), (2, 10034750), (4, 5017375), (5, 4013900), (10, 2006950), (11, 1824500), (20, 1003475), (22, 912250), (25, 802780), (41, 489500), (44, 456125), (50, 401390), (55, 364900), (82, 244750), (89, 225500), (100, 200695), (110, 182450), (125, 160556), (164, 122375), (178, 112750), (205, 97900), (220, 91225), (250, 80278), (275, 72980), (356, 56375), (410, 48950), (445, 45100), (451, 44500), (500, 40139), (550, 36490), (820, 24475), (890, 22550), (902, 22250), (979, 20500), (1025, 19580), (1100, 18245), (1375, 14596), (1780, 11275), (1804, 11125), (1958, 10250), (2050, 9790), (2225, 9020), (2255, 8900), (2750, 7298), (3649, 5500), (3916, 5125), (4100, 4895), (4450, 4510)]