31865210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7907}}^1$

素因数の和:7958

約数の個数: 32

約数和(自身を含む): 63770112

約数和(自身を除く): 31904902

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 7907, 15814, 39535, 79070, 102791, 205582, 245117, 490234, 513955, 1027910, 1225585, 2451170, 3186521, 6373042, 15932605, 31865210]

約数ペア:

[(1, 31865210), (2, 15932605), (5, 6373042), (10, 3186521), (13, 2451170), (26, 1225585), (31, 1027910), (62, 513955), (65, 490234), (130, 245117), (155, 205582), (310, 102791), (403, 79070), (806, 39535), (2015, 15814), (4030, 7907)]