180781251

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{2753}}^1$

素因数の和:2875

約数の個数: 32

約数和(自身を含む): 285534720

約数和(自身を除く): 104753469

約数列:

[1, 3, 7, 21, 53, 59, 159, 177, 371, 413, 1113, 1239, 2753, 3127, 8259, 9381, 19271, 21889, 57813, 65667, 145909, 162427, 437727, 487281, 1021363, 1136989, 3064089, 3410967, 8608631, 25825893, 60260417, 180781251]

約数ペア:

[(1, 180781251), (3, 60260417), (7, 25825893), (21, 8608631), (53, 3410967), (59, 3064089), (159, 1136989), (177, 1021363), (371, 487281), (413, 437727), (1113, 162427), (1239, 145909), (2753, 65667), (3127, 57813), (8259, 21889), (9381, 19271)]