31256235

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 26401365

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 139, 171, 263, 285, 417, 695, 789, 855, 1251, 1315, 2085, 2367, 2641, 3945, 4997, 6255, 7923, 11835, 13205, 14991, 23769, 24985, 36557, 39615, 44973, 74955, 109671, 118845, 182785, 224865, 329013, 548355, 694583, 1645065, 2083749, 3472915, 6251247, 10418745, 31256235]

約数ペア:

[(1, 31256235), (3, 10418745), (5, 6251247), (9, 3472915), (15, 2083749), (19, 1645065), (45, 694583), (57, 548355), (95, 329013), (139, 224865), (171, 182785), (263, 118845), (285, 109671), (417, 74955), (695, 44973), (789, 39615), (855, 36557), (1251, 24985), (1315, 23769), (2085, 14991), (2367, 13205), (2641, 11835), (3945, 7923), (4997, 6255)]