90491975

素因数分解:

$5^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 133771200

約数和(自身を除く): 43279225

約数列:

[1, 5, 7, 25, 35, 49, 61, 173, 175, 245, 305, 343, 427, 865, 1211, 1225, 1525, 1715, 2135, 2989, 4325, 6055, 8477, 8575, 10553, 10675, 14945, 20923, 30275, 42385, 52765, 59339, 73871, 74725, 104615, 211925, 263825, 296695, 369355, 517097, 523075, 1483475, 1846775, 2585485, 3619679, 12927425, 18098395, 90491975]

約数ペア:

[(1, 90491975), (5, 18098395), (7, 12927425), (25, 3619679), (35, 2585485), (49, 1846775), (61, 1483475), (173, 523075), (175, 517097), (245, 369355), (305, 296695), (343, 263825), (427, 211925), (865, 104615), (1211, 74725), (1225, 73871), (1525, 59339), (1715, 52765), (2135, 42385), (2989, 30275), (4325, 20923), (6055, 14945), (8477, 10675), (8575, 10553)]