28780491255

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2027}}^1\times {\mathrm{25583}}^1$

素因数の和:27655

約数の個数: 32

約数和(自身を含む): 47318529024

約数和(自身を除く): 18538037769

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 2027, 6081, 10135, 25583, 30405, 74999, 76749, 127915, 224997, 374995, 383745, 946571, 1124985, 2839713, 4732855, 14198565, 51856741, 155570223, 259283705, 777851115, 1918699417, 5756098251, 9593497085, 28780491255]

約数ペア:

[(1, 28780491255), (3, 9593497085), (5, 5756098251), (15, 1918699417), (37, 777851115), (111, 259283705), (185, 155570223), (555, 51856741), (2027, 14198565), (6081, 4732855), (10135, 2839713), (25583, 1124985), (30405, 946571), (74999, 383745), (76749, 374995), (127915, 224997)]