84088900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{131}}^2$

素因数の和:290

約数の個数: 81

約数和(自身を含む): 213897117

約数和(自身を除く): 129808217

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 131, 140, 175, 196, 245, 262, 350, 490, 524, 655, 700, 917, 980, 1225, 1310, 1834, 2450, 2620, 3275, 3668, 4585, 4900, 6419, 6550, 9170, 12838, 13100, 17161, 18340, 22925, 25676, 32095, 34322, 45850, 64190, 68644, 85805, 91700, 120127, 128380, 160475, 171610, 240254, 320950, 343220, 429025, 480508, 600635, 641900, 840889, 858050, 1201270, 1681778, 1716100, 2402540, 3003175, 3363556, 4204445, 6006350, 8408890, 12012700, 16817780, 21022225, 42044450, 84088900]

約数ペア:

[(1, 84088900), (2, 42044450), (4, 21022225), (5, 16817780), (7, 12012700), (10, 8408890), (14, 6006350), (20, 4204445), (25, 3363556), (28, 3003175), (35, 2402540), (49, 1716100), (50, 1681778), (70, 1201270), (98, 858050), (100, 840889), (131, 641900), (140, 600635), (175, 480508), (196, 429025), (245, 343220), (262, 320950), (350, 240254), (490, 171610), (524, 160475), (655, 128380), (700, 120127), (917, 91700), (980, 85805), (1225, 68644), (1310, 64190), (1834, 45850), (2450, 34322), (2620, 32095), (3275, 25676), (3668, 22925), (4585, 18340), (4900, 17161), (6419, 13100), (6550, 12838)]