263533790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{65393}}^1$

素因数の和:65444

約数の個数: 32

約数和(自身を含む): 527337216

約数和(自身を除く): 263803426

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 65393, 130786, 326965, 653930, 850109, 1700218, 2027183, 4054366, 4250545, 8501090, 10135915, 20271830, 26353379, 52706758, 131766895, 263533790]

約数ペア:

[(1, 263533790), (2, 131766895), (5, 52706758), (10, 26353379), (13, 20271830), (26, 10135915), (31, 8501090), (62, 4250545), (65, 4054366), (130, 2027183), (155, 1700218), (310, 850109), (403, 653930), (806, 326965), (2015, 130786), (4030, 65393)]