205065

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{31}}^1$

素因数の和:59

約数の個数: 48

約数和(自身を含む): 437760

約数和(自身を除く): 232695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 49, 63, 93, 105, 135, 147, 155, 189, 217, 245, 279, 315, 441, 465, 651, 735, 837, 945, 1085, 1323, 1395, 1519, 1953, 2205, 3255, 4185, 4557, 5859, 6615, 7595, 9765, 13671, 22785, 29295, 41013, 68355, 205065]

約数ペア:

[(1, 205065), (3, 68355), (5, 41013), (7, 29295), (9, 22785), (15, 13671), (21, 9765), (27, 7595), (31, 6615), (35, 5859), (45, 4557), (49, 4185), (63, 3255), (93, 2205), (105, 1953), (135, 1519), (147, 1395), (155, 1323), (189, 1085), (217, 945), (245, 837), (279, 735), (315, 651), (441, 465)]