12699520

素因数分解:

$2^7\times 5^1\times {\mathrm{19843}}^1$

素因数の和:19862

約数の個数: 32

約数和(自身を含む): 30361320

約数和(自身を除く): 17661800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19843, 39686, 79372, 99215, 158744, 198430, 317488, 396860, 634976, 793720, 1269952, 1587440, 2539904, 3174880, 6349760, 12699520]

約数ペア:

[(1, 12699520), (2, 6349760), (4, 3174880), (5, 2539904), (8, 1587440), (10, 1269952), (16, 793720), (20, 634976), (32, 396860), (40, 317488), (64, 198430), (80, 158744), (128, 99215), (160, 79372), (320, 39686), (640, 19843)]