420996878

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:884

約数の個数: 32

約数和(自身を含む): 663616800

約数和(自身を除く): 242619922

約数列:

[1, 2, 37, 74, 89, 97, 178, 194, 659, 1318, 3293, 3589, 6586, 7178, 8633, 17266, 24383, 48766, 58651, 63923, 117302, 127846, 319421, 638842, 2170087, 2365151, 4340174, 4730302, 5689147, 11378294, 210498439, 420996878]

約数ペア:

[(1, 420996878), (2, 210498439), (37, 11378294), (74, 5689147), (89, 4730302), (97, 4340174), (178, 2365151), (194, 2170087), (659, 638842), (1318, 319421), (3293, 127846), (3589, 117302), (6586, 63923), (7178, 58651), (8633, 48766), (17266, 24383)]