2021026875

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3654

約数の個数: 80

約数和(自身を含む): 3938939136

約数和(自身を除く): 1917912261

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 125, 129, 175, 215, 301, 375, 525, 625, 645, 875, 903, 1075, 1505, 1875, 2625, 3225, 3581, 4375, 4515, 5375, 7525, 10743, 13125, 16125, 17905, 22575, 25067, 26875, 37625, 53715, 75201, 80625, 89525, 112875, 125335, 153983, 188125, 268575, 376005, 447625, 461949, 564375, 626675, 769915, 1077881, 1342875, 1880025, 2238125, 2309745, 3133375, 3233643, 3849575, 5389405, 6714375, 9400125, 11548725, 15666875, 16168215, 19247875, 26947025, 47000625, 57743625, 80841075, 96239375, 134735125, 288718125, 404205375, 673675625, 2021026875]

約数ペア:

[(1, 2021026875), (3, 673675625), (5, 404205375), (7, 288718125), (15, 134735125), (21, 96239375), (25, 80841075), (35, 57743625), (43, 47000625), (75, 26947025), (105, 19247875), (125, 16168215), (129, 15666875), (175, 11548725), (215, 9400125), (301, 6714375), (375, 5389405), (525, 3849575), (625, 3233643), (645, 3133375), (875, 2309745), (903, 2238125), (1075, 1880025), (1505, 1342875), (1875, 1077881), (2625, 769915), (3225, 626675), (3581, 564375), (4375, 461949), (4515, 447625), (5375, 376005), (7525, 268575), (10743, 188125), (13125, 153983), (16125, 125335), (17905, 112875), (22575, 89525), (25067, 80625), (26875, 75201), (37625, 53715)]