390017835

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15787}}^1$

素因数の和:15865

約数の個数: 40

約数和(自身を含む): 710649456

約数和(自身を除く): 320631621

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 915, 1647, 2745, 4941, 8235, 15787, 24705, 47361, 78935, 142083, 236805, 426249, 710415, 963007, 1278747, 2131245, 2889021, 4815035, 6393735, 8667063, 14445105, 26001189, 43335315, 78003567, 130005945, 390017835]

約数ペア:

[(1, 390017835), (3, 130005945), (5, 78003567), (9, 43335315), (15, 26001189), (27, 14445105), (45, 8667063), (61, 6393735), (81, 4815035), (135, 2889021), (183, 2131245), (305, 1278747), (405, 963007), (549, 710415), (915, 426249), (1647, 236805), (2745, 142083), (4941, 78935), (8235, 47361), (15787, 24705)]