28820000

素因数分解:

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

素因数の和:172

約数の個数: 120

約数和(自身を含む): 77937552

約数和(自身を除く): 49117552

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 131, 160, 176, 200, 220, 250, 262, 275, 352, 400, 440, 500, 524, 550, 625, 655, 800, 880, 1000, 1048, 1100, 1250, 1310, 1375, 1441, 1760, 2000, 2096, 2200, 2500, 2620, 2750, 2882, 3275, 4000, 4192, 4400, 5000, 5240, 5500, 5764, 6550, 6875, 7205, 8800, 10000, 10480, 11000, 11528, 13100, 13750, 14410, 16375, 20000, 20960, 22000, 23056, 26200, 27500, 28820, 32750, 36025, 44000, 46112, 52400, 55000, 57640, 65500, 72050, 81875, 104800, 110000, 115280, 131000, 144100, 163750, 180125, 220000, 230560, 262000, 288200, 327500, 360250, 524000, 576400, 655000, 720500, 900625, 1152800, 1310000, 1441000, 1801250, 2620000, 2882000, 3602500, 5764000, 7205000, 14410000, 28820000]

約数ペア:

[(1, 28820000), (2, 14410000), (4, 7205000), (5, 5764000), (8, 3602500), (10, 2882000), (11, 2620000), (16, 1801250), (20, 1441000), (22, 1310000), (25, 1152800), (32, 900625), (40, 720500), (44, 655000), (50, 576400), (55, 524000), (80, 360250), (88, 327500), (100, 288200), (110, 262000), (125, 230560), (131, 220000), (160, 180125), (176, 163750), (200, 144100), (220, 131000), (250, 115280), (262, 110000), (275, 104800), (352, 81875), (400, 72050), (440, 65500), (500, 57640), (524, 55000), (550, 52400), (625, 46112), (655, 44000), (800, 36025), (880, 32750), (1000, 28820), (1048, 27500), (1100, 26200), (1250, 23056), (1310, 22000), (1375, 20960), (1441, 20000), (1760, 16375), (2000, 14410), (2096, 13750), (2200, 13100), (2500, 11528), (2620, 11000), (2750, 10480), (2882, 10000), (3275, 8800), (4000, 7205), (4192, 6875), (4400, 6550), (5000, 5764), (5240, 5500)]