20614860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16361}}^1$

素因数の和:16383

約数の個数: 72

約数和(自身を含む): 71469216

約数和(自身を除く): 50854356

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16361, 32722, 49083, 65444, 81805, 98166, 114527, 147249, 163610, 196332, 229054, 245415, 294498, 327220, 343581, 458108, 490830, 572635, 588996, 687162, 736245, 981660, 1030743, 1145270, 1374324, 1472490, 1717905, 2061486, 2290540, 2944980, 3435810, 4122972, 5153715, 6871620, 10307430, 20614860]

約数ペア:

[(1, 20614860), (2, 10307430), (3, 6871620), (4, 5153715), (5, 4122972), (6, 3435810), (7, 2944980), (9, 2290540), (10, 2061486), (12, 1717905), (14, 1472490), (15, 1374324), (18, 1145270), (20, 1030743), (21, 981660), (28, 736245), (30, 687162), (35, 588996), (36, 572635), (42, 490830), (45, 458108), (60, 343581), (63, 327220), (70, 294498), (84, 245415), (90, 229054), (105, 196332), (126, 163610), (140, 147249), (180, 114527), (210, 98166), (252, 81805), (315, 65444), (420, 49083), (630, 32722), (1260, 16361)]