320852675

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 484864800

約数和(自身を除く): 164012125

約数列:

[1, 5, 11, 13, 25, 41, 55, 65, 121, 143, 199, 205, 275, 325, 451, 533, 605, 715, 995, 1025, 1573, 2189, 2255, 2587, 2665, 3025, 3575, 4961, 4975, 5863, 7865, 8159, 10945, 11275, 12935, 13325, 24079, 24805, 28457, 29315, 39325, 40795, 54725, 64493, 64675, 89749, 106067, 120395, 124025, 142285, 146575, 203975, 313027, 322465, 448745, 530335, 601975, 711425, 987239, 1166737, 1565135, 1612325, 2243725, 2651675, 4936195, 5833685, 7825675, 12834107, 24680975, 29168425, 64170535, 320852675]

約数ペア:

[(1, 320852675), (5, 64170535), (11, 29168425), (13, 24680975), (25, 12834107), (41, 7825675), (55, 5833685), (65, 4936195), (121, 2651675), (143, 2243725), (199, 1612325), (205, 1565135), (275, 1166737), (325, 987239), (451, 711425), (533, 601975), (605, 530335), (715, 448745), (995, 322465), (1025, 313027), (1573, 203975), (2189, 146575), (2255, 142285), (2587, 124025), (2665, 120395), (3025, 106067), (3575, 89749), (4961, 64675), (4975, 64493), (5863, 54725), (7865, 40795), (8159, 39325), (10945, 29315), (11275, 28457), (12935, 24805), (13325, 24079)]