20792960

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 50728680

約数和(自身を除く): 29935720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 530, 613, 640, 848, 1060, 1226, 1696, 2120, 2452, 3065, 3392, 4240, 4904, 6130, 6784, 8480, 9808, 12260, 16960, 19616, 24520, 32489, 33920, 39232, 49040, 64978, 78464, 98080, 129956, 162445, 196160, 259912, 324890, 392320, 519824, 649780, 1039648, 1299560, 2079296, 2599120, 4158592, 5198240, 10396480, 20792960]

約数ペア:

[(1, 20792960), (2, 10396480), (4, 5198240), (5, 4158592), (8, 2599120), (10, 2079296), (16, 1299560), (20, 1039648), (32, 649780), (40, 519824), (53, 392320), (64, 324890), (80, 259912), (106, 196160), (128, 162445), (160, 129956), (212, 98080), (265, 78464), (320, 64978), (424, 49040), (530, 39232), (613, 33920), (640, 32489), (848, 24520), (1060, 19616), (1226, 16960), (1696, 12260), (2120, 9808), (2452, 8480), (3065, 6784), (3392, 6130), (4240, 4904)]