21223680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5527}}^1$

素因数の和:5551

約数の個数: 72

約数和(自身を含む): 67795392

約数和(自身を除く): 46571712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5527, 11054, 16581, 22108, 27635, 33162, 44216, 55270, 66324, 82905, 88432, 110540, 132648, 165810, 176864, 221080, 265296, 331620, 353728, 442160, 530592, 663240, 707456, 884320, 1061184, 1326480, 1414912, 1768640, 2122368, 2652960, 3537280, 4244736, 5305920, 7074560, 10611840, 21223680]

約数ペア:

[(1, 21223680), (2, 10611840), (3, 7074560), (4, 5305920), (5, 4244736), (6, 3537280), (8, 2652960), (10, 2122368), (12, 1768640), (15, 1414912), (16, 1326480), (20, 1061184), (24, 884320), (30, 707456), (32, 663240), (40, 530592), (48, 442160), (60, 353728), (64, 331620), (80, 265296), (96, 221080), (120, 176864), (128, 165810), (160, 132648), (192, 110540), (240, 88432), (256, 82905), (320, 66324), (384, 55270), (480, 44216), (640, 33162), (768, 27635), (960, 22108), (1280, 16581), (1920, 11054), (3840, 5527)]