127649780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{467}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 273611520

約数和(自身を除く): 145961740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 173, 316, 346, 395, 467, 692, 790, 865, 934, 1580, 1730, 1868, 2335, 3460, 4670, 9340, 13667, 27334, 36893, 54668, 68335, 73786, 80791, 136670, 147572, 161582, 184465, 273340, 323164, 368930, 403955, 737860, 807910, 1615820, 6382489, 12764978, 25529956, 31912445, 63824890, 127649780]

約数ペア:

[(1, 127649780), (2, 63824890), (4, 31912445), (5, 25529956), (10, 12764978), (20, 6382489), (79, 1615820), (158, 807910), (173, 737860), (316, 403955), (346, 368930), (395, 323164), (467, 273340), (692, 184465), (790, 161582), (865, 147572), (934, 136670), (1580, 80791), (1730, 73786), (1868, 68335), (2335, 54668), (3460, 36893), (4670, 27334), (9340, 13667)]