7205000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1$

素因数の和:168

約数の個数: 80

約数和(自身を含む): 18556560

約数和(自身を除く): 11351560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 131, 200, 220, 250, 262, 275, 440, 500, 524, 550, 625, 655, 1000, 1048, 1100, 1250, 1310, 1375, 1441, 2200, 2500, 2620, 2750, 2882, 3275, 5000, 5240, 5500, 5764, 6550, 6875, 7205, 11000, 11528, 13100, 13750, 14410, 16375, 26200, 27500, 28820, 32750, 36025, 55000, 57640, 65500, 72050, 81875, 131000, 144100, 163750, 180125, 288200, 327500, 360250, 655000, 720500, 900625, 1441000, 1801250, 3602500, 7205000]

約数ペア:

[(1, 7205000), (2, 3602500), (4, 1801250), (5, 1441000), (8, 900625), (10, 720500), (11, 655000), (20, 360250), (22, 327500), (25, 288200), (40, 180125), (44, 163750), (50, 144100), (55, 131000), (88, 81875), (100, 72050), (110, 65500), (125, 57640), (131, 55000), (200, 36025), (220, 32750), (250, 28820), (262, 27500), (275, 26200), (440, 16375), (500, 14410), (524, 13750), (550, 13100), (625, 11528), (655, 11000), (1000, 7205), (1048, 6875), (1100, 6550), (1250, 5764), (1310, 5500), (1375, 5240), (1441, 5000), (2200, 3275), (2500, 2882), (2620, 2750)]