631194880

素因数分解:

$2^8\times 5^1\times {\mathrm{493121}}^1$

素因数の和:493142

約数の個数: 36

約数和(自身を含む): 1511912052

約数和(自身を除く): 880717172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 493121, 986242, 1972484, 2465605, 3944968, 4931210, 7889936, 9862420, 15779872, 19724840, 31559744, 39449680, 63119488, 78899360, 126238976, 157798720, 315597440, 631194880]

約数ペア:

[(1, 631194880), (2, 315597440), (4, 157798720), (5, 126238976), (8, 78899360), (10, 63119488), (16, 39449680), (20, 31559744), (32, 19724840), (40, 15779872), (64, 9862420), (80, 7889936), (128, 4931210), (160, 3944968), (256, 2465605), (320, 1972484), (640, 986242), (1280, 493121)]