20245843125

素因数分解:

$3^2\times 5^4\times {\mathrm{647}}^1\times {\mathrm{5563}}^1$

素因数の和:6236

約数の個数: 60

約数和(自身を含む): 36606357216

約数和(自身を除く): 16360514091

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 647, 1125, 1875, 1941, 3235, 5563, 5625, 5823, 9705, 16175, 16689, 27815, 29115, 48525, 50067, 80875, 83445, 139075, 145575, 242625, 250335, 404375, 417225, 695375, 727875, 1213125, 1251675, 2086125, 3476875, 3599261, 3639375, 6258375, 10430625, 10797783, 17996305, 31291875, 32393349, 53988915, 89981525, 161966745, 269944575, 449907625, 809833725, 1349722875, 2249538125, 4049168625, 6748614375, 20245843125]

約数ペア:

[(1, 20245843125), (3, 6748614375), (5, 4049168625), (9, 2249538125), (15, 1349722875), (25, 809833725), (45, 449907625), (75, 269944575), (125, 161966745), (225, 89981525), (375, 53988915), (625, 32393349), (647, 31291875), (1125, 17996305), (1875, 10797783), (1941, 10430625), (3235, 6258375), (5563, 3639375), (5625, 3599261), (5823, 3476875), (9705, 2086125), (16175, 1251675), (16689, 1213125), (27815, 727875), (29115, 695375), (48525, 417225), (50067, 404375), (80875, 250335), (83445, 242625), (139075, 145575)]