155820420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{123667}}^1$

素因数の和:123689

約数の個数: 72

約数和(自身を含む): 540181824

約数和(自身を除く): 384361404

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, 123667, 247334, 371001, 494668, 618335, 742002, 865669, 1113003, 1236670, 1484004, 1731338, 1855005, 2226006, 2473340, 2597007, 3462676, 3710010, 4328345, 4452012, 5194014, 5565015, 7420020, 7791021, 8656690, 10388028, 11130030, 12985035, 15582042, 17313380, 22260060, 25970070, 31164084, 38955105, 51940140, 77910210, 155820420]

約数ペア:

[(1, 155820420), (2, 77910210), (3, 51940140), (4, 38955105), (5, 31164084), (6, 25970070), (7, 22260060), (9, 17313380), (10, 15582042), (12, 12985035), (14, 11130030), (15, 10388028), (18, 8656690), (20, 7791021), (21, 7420020), (28, 5565015), (30, 5194014), (35, 4452012), (36, 4328345), (42, 3710010), (45, 3462676), (60, 2597007), (63, 2473340), (70, 2226006), (84, 1855005), (90, 1731338), (105, 1484004), (126, 1236670), (140, 1113003), (180, 865669), (210, 742002), (252, 618335), (315, 494668), (420, 371001), (630, 247334), (1260, 123667)]