28650985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 12717335

約数列:

[1, 5, 11, 23, 29, 55, 71, 115, 121, 145, 253, 319, 355, 605, 667, 781, 1265, 1595, 1633, 2059, 2783, 3335, 3509, 3905, 7337, 8165, 8591, 10295, 13915, 17545, 17963, 22649, 36685, 42955, 47357, 80707, 89815, 113245, 197593, 236785, 249139, 403535, 520927, 987965, 1245695, 2604635, 5730197, 28650985]

約数ペア:

[(1, 28650985), (5, 5730197), (11, 2604635), (23, 1245695), (29, 987965), (55, 520927), (71, 403535), (115, 249139), (121, 236785), (145, 197593), (253, 113245), (319, 89815), (355, 80707), (605, 47357), (667, 42955), (781, 36685), (1265, 22649), (1595, 17963), (1633, 17545), (2059, 13915), (2783, 10295), (3335, 8591), (3509, 8165), (3905, 7337)]