72978815

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1499}}^1$

素因数の和:1631

約数の個数: 32

約数和(自身を含む): 108864000

約数和(自身を除く): 35885185

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 455, 535, 749, 1391, 1499, 3745, 6955, 7495, 9737, 10493, 19487, 48685, 52465, 97435, 136409, 160393, 682045, 801965, 1122751, 2085109, 5613755, 10425545, 14595763, 72978815]

約数ペア:

[(1, 72978815), (5, 14595763), (7, 10425545), (13, 5613755), (35, 2085109), (65, 1122751), (91, 801965), (107, 682045), (455, 160393), (535, 136409), (749, 97435), (1391, 52465), (1499, 48685), (3745, 19487), (6955, 10493), (7495, 9737)]