28404525

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 51107840

約数和(自身を除く): 22703315

約数列:

[1, 3, 5, 15, 19, 25, 31, 57, 75, 93, 95, 155, 285, 465, 475, 589, 643, 775, 1425, 1767, 1929, 2325, 2945, 3215, 8835, 9645, 12217, 14725, 16075, 19933, 36651, 44175, 48225, 59799, 61085, 99665, 183255, 298995, 305425, 378727, 498325, 916275, 1136181, 1494975, 1893635, 5680905, 9468175, 28404525]

約数ペア:

[(1, 28404525), (3, 9468175), (5, 5680905), (15, 1893635), (19, 1494975), (25, 1136181), (31, 916275), (57, 498325), (75, 378727), (93, 305425), (95, 298995), (155, 183255), (285, 99665), (465, 61085), (475, 59799), (589, 48225), (643, 44175), (775, 36651), (1425, 19933), (1767, 16075), (1929, 14725), (2325, 12217), (2945, 9645), (3215, 8835)]