17970615

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 35970480

約数和(自身を除く): 17999865

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 139, 153, 169, 195, 221, 255, 417, 507, 585, 663, 695, 765, 845, 1105, 1251, 1521, 1807, 1989, 2085, 2363, 2535, 2873, 3315, 5421, 6255, 7089, 7605, 8619, 9035, 9945, 11815, 14365, 16263, 21267, 23491, 25857, 27105, 30719, 35445, 43095, 70473, 81315, 92157, 106335, 117455, 129285, 153595, 211419, 276471, 352365, 399347, 460785, 1057095, 1198041, 1382355, 1996735, 3594123, 5990205, 17970615]

約数ペア:

[(1, 17970615), (3, 5990205), (5, 3594123), (9, 1996735), (13, 1382355), (15, 1198041), (17, 1057095), (39, 460785), (45, 399347), (51, 352365), (65, 276471), (85, 211419), (117, 153595), (139, 129285), (153, 117455), (169, 106335), (195, 92157), (221, 81315), (255, 70473), (417, 43095), (507, 35445), (585, 30719), (663, 27105), (695, 25857), (765, 23491), (845, 21267), (1105, 16263), (1251, 14365), (1521, 11815), (1807, 9945), (1989, 9035), (2085, 8619), (2363, 7605), (2535, 7089), (2873, 6255), (3315, 5421)]