51537780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{40903}}^1$

素因数の和:40925

約数の個数: 72

約数和(自身を含む): 178668672

約数和(自身を除く): 127130892

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, 40903, 81806, 122709, 163612, 204515, 245418, 286321, 368127, 409030, 490836, 572642, 613545, 736254, 818060, 858963, 1145284, 1227090, 1431605, 1472508, 1717926, 1840635, 2454180, 2576889, 2863210, 3435852, 3681270, 4294815, 5153778, 5726420, 7362540, 8589630, 10307556, 12884445, 17179260, 25768890, 51537780]

約数ペア:

[(1, 51537780), (2, 25768890), (3, 17179260), (4, 12884445), (5, 10307556), (6, 8589630), (7, 7362540), (9, 5726420), (10, 5153778), (12, 4294815), (14, 3681270), (15, 3435852), (18, 2863210), (20, 2576889), (21, 2454180), (28, 1840635), (30, 1717926), (35, 1472508), (36, 1431605), (42, 1227090), (45, 1145284), (60, 858963), (63, 818060), (70, 736254), (84, 613545), (90, 572642), (105, 490836), (126, 409030), (140, 368127), (180, 286321), (210, 245418), (252, 204515), (315, 163612), (420, 122709), (630, 81806), (1260, 40903)]