28996045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 38997504

約数和(自身を除く): 10001459

約数列:

[1, 5, 13, 61, 65, 71, 103, 305, 355, 515, 793, 923, 1339, 3965, 4331, 4615, 6283, 6695, 7313, 21655, 31415, 36565, 56303, 81679, 95069, 281515, 408395, 446093, 475345, 2230465, 5799209, 28996045]

約数ペア:

[(1, 28996045), (5, 5799209), (13, 2230465), (61, 475345), (65, 446093), (71, 408395), (103, 281515), (305, 95069), (355, 81679), (515, 56303), (793, 36565), (923, 31415), (1339, 21655), (3965, 7313), (4331, 6695), (4615, 6283)]