64190000

素因数分解:

$2^4\times 5^4\times 7^2\times {\mathrm{131}}^1$

素因数の和:173

約数の個数: 150

約数和(自身を含む): 182163564

約数和(自身を除く): 117973564

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 131, 140, 175, 196, 200, 245, 250, 262, 280, 350, 392, 400, 490, 500, 524, 560, 625, 655, 700, 784, 875, 917, 980, 1000, 1048, 1225, 1250, 1310, 1400, 1750, 1834, 1960, 2000, 2096, 2450, 2500, 2620, 2800, 3275, 3500, 3668, 3920, 4375, 4585, 4900, 5000, 5240, 6125, 6419, 6550, 7000, 7336, 8750, 9170, 9800, 10000, 10480, 12250, 12838, 13100, 14000, 14672, 16375, 17500, 18340, 19600, 22925, 24500, 25676, 26200, 30625, 32095, 32750, 35000, 36680, 45850, 49000, 51352, 52400, 61250, 64190, 65500, 70000, 73360, 81875, 91700, 98000, 102704, 114625, 122500, 128380, 131000, 160475, 163750, 183400, 229250, 245000, 256760, 262000, 320950, 327500, 366800, 458500, 490000, 513520, 573125, 641900, 655000, 802375, 917000, 1146250, 1283800, 1310000, 1604750, 1834000, 2292500, 2567600, 3209500, 4011875, 4585000, 6419000, 8023750, 9170000, 12838000, 16047500, 32095000, 64190000]

約数ペア:

[(1, 64190000), (2, 32095000), (4, 16047500), (5, 12838000), (7, 9170000), (8, 8023750), (10, 6419000), (14, 4585000), (16, 4011875), (20, 3209500), (25, 2567600), (28, 2292500), (35, 1834000), (40, 1604750), (49, 1310000), (50, 1283800), (56, 1146250), (70, 917000), (80, 802375), (98, 655000), (100, 641900), (112, 573125), (125, 513520), (131, 490000), (140, 458500), (175, 366800), (196, 327500), (200, 320950), (245, 262000), (250, 256760), (262, 245000), (280, 229250), (350, 183400), (392, 163750), (400, 160475), (490, 131000), (500, 128380), (524, 122500), (560, 114625), (625, 102704), (655, 98000), (700, 91700), (784, 81875), (875, 73360), (917, 70000), (980, 65500), (1000, 64190), (1048, 61250), (1225, 52400), (1250, 51352), (1310, 49000), (1400, 45850), (1750, 36680), (1834, 35000), (1960, 32750), (2000, 32095), (2096, 30625), (2450, 26200), (2500, 25676), (2620, 24500), (2800, 22925), (3275, 19600), (3500, 18340), (3668, 17500), (3920, 16375), (4375, 14672), (4585, 14000), (4900, 13100), (5000, 12838), (5240, 12250), (6125, 10480), (6419, 10000), (6550, 9800), (7000, 9170), (7336, 8750)]