161780475

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 278553600

約数和(自身を除く): 116773125

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 149, 155, 447, 465, 467, 745, 775, 1401, 2235, 2325, 2335, 3725, 4619, 7005, 11175, 11675, 13857, 14477, 23095, 35025, 43431, 69285, 69583, 72385, 115475, 208749, 217155, 346425, 347915, 361925, 1043745, 1085775, 1739575, 2157073, 5218725, 6471219, 10785365, 32356095, 53926825, 161780475]

約数ペア:

[(1, 161780475), (3, 53926825), (5, 32356095), (15, 10785365), (25, 6471219), (31, 5218725), (75, 2157073), (93, 1739575), (149, 1085775), (155, 1043745), (447, 361925), (465, 347915), (467, 346425), (745, 217155), (775, 208749), (1401, 115475), (2235, 72385), (2325, 69583), (2335, 69285), (3725, 43431), (4619, 35025), (7005, 23095), (11175, 14477), (11675, 13857)]