20734805

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 30912000

約数和(自身を除く): 10177195

約数列:

[1, 5, 7, 13, 35, 65, 91, 199, 229, 455, 995, 1145, 1393, 1603, 2587, 2977, 6965, 8015, 12935, 14885, 18109, 20839, 45571, 90545, 104195, 227855, 318997, 592423, 1594985, 2962115, 4146961, 20734805]

約数ペア:

[(1, 20734805), (5, 4146961), (7, 2962115), (13, 1594985), (35, 592423), (65, 318997), (91, 227855), (199, 104195), (229, 90545), (455, 45571), (995, 20839), (1145, 18109), (1393, 14885), (1603, 12935), (2587, 8015), (2977, 6965)]