72050000

素因数分解:

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

素因数の和:175

約数の個数: 120

約数和(自身を含む): 191800224

約数和(自身を除く): 119750224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 131, 176, 200, 220, 250, 262, 275, 400, 440, 500, 524, 550, 625, 655, 880, 1000, 1048, 1100, 1250, 1310, 1375, 1441, 2000, 2096, 2200, 2500, 2620, 2750, 2882, 3125, 3275, 4400, 5000, 5240, 5500, 5764, 6250, 6550, 6875, 7205, 10000, 10480, 11000, 11528, 12500, 13100, 13750, 14410, 16375, 22000, 23056, 25000, 26200, 27500, 28820, 32750, 34375, 36025, 50000, 52400, 55000, 57640, 65500, 68750, 72050, 81875, 110000, 115280, 131000, 137500, 144100, 163750, 180125, 262000, 275000, 288200, 327500, 360250, 409375, 550000, 576400, 655000, 720500, 818750, 900625, 1310000, 1441000, 1637500, 1801250, 2882000, 3275000, 3602500, 4503125, 6550000, 7205000, 9006250, 14410000, 18012500, 36025000, 72050000]

約数ペア:

[(1, 72050000), (2, 36025000), (4, 18012500), (5, 14410000), (8, 9006250), (10, 7205000), (11, 6550000), (16, 4503125), (20, 3602500), (22, 3275000), (25, 2882000), (40, 1801250), (44, 1637500), (50, 1441000), (55, 1310000), (80, 900625), (88, 818750), (100, 720500), (110, 655000), (125, 576400), (131, 550000), (176, 409375), (200, 360250), (220, 327500), (250, 288200), (262, 275000), (275, 262000), (400, 180125), (440, 163750), (500, 144100), (524, 137500), (550, 131000), (625, 115280), (655, 110000), (880, 81875), (1000, 72050), (1048, 68750), (1100, 65500), (1250, 57640), (1310, 55000), (1375, 52400), (1441, 50000), (2000, 36025), (2096, 34375), (2200, 32750), (2500, 28820), (2620, 27500), (2750, 26200), (2882, 25000), (3125, 23056), (3275, 22000), (4400, 16375), (5000, 14410), (5240, 13750), (5500, 13100), (5764, 12500), (6250, 11528), (6550, 11000), (6875, 10480), (7205, 10000)]