28248945

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2213}}^1$

素因数の和:2281

約数の個数: 32

約数和(自身を含む): 48460032

約数和(自身を除く): 20211087

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 2213, 2553, 4255, 6639, 11065, 12765, 33195, 50899, 81881, 152697, 245643, 254495, 409405, 763485, 1228215, 1883263, 5649789, 9416315, 28248945]

約数ペア:

[(1, 28248945), (3, 9416315), (5, 5649789), (15, 1883263), (23, 1228215), (37, 763485), (69, 409405), (111, 254495), (115, 245643), (185, 152697), (345, 81881), (555, 50899), (851, 33195), (2213, 12765), (2553, 11065), (4255, 6639)]