28918505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2423}}^1$

素因数の和:2477

約数の個数: 32

約数和(自身を含む): 44679168

約数和(自身を除く): 15760663

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 1085, 1705, 2387, 2423, 11935, 12115, 16961, 26653, 75113, 84805, 133265, 186571, 375565, 525791, 826243, 932855, 2628955, 4131215, 5783701, 28918505]

約数ペア:

[(1, 28918505), (5, 5783701), (7, 4131215), (11, 2628955), (31, 932855), (35, 826243), (55, 525791), (77, 375565), (155, 186571), (217, 133265), (341, 84805), (385, 75113), (1085, 26653), (1705, 16961), (2387, 12115), (2423, 11935)]