12793840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{443}}^1$

素因数の和:494

約数の個数: 60

約数和(自身を含む): 31464504

約数和(自身を除く): 18670664

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 443, 722, 760, 886, 1444, 1520, 1772, 1805, 2215, 2888, 3544, 3610, 4430, 5776, 7088, 7220, 8417, 8860, 14440, 16834, 17720, 28880, 33668, 35440, 42085, 67336, 84170, 134672, 159923, 168340, 319846, 336680, 639692, 673360, 799615, 1279384, 1599230, 2558768, 3198460, 6396920, 12793840]

約数ペア:

[(1, 12793840), (2, 6396920), (4, 3198460), (5, 2558768), (8, 1599230), (10, 1279384), (16, 799615), (19, 673360), (20, 639692), (38, 336680), (40, 319846), (76, 168340), (80, 159923), (95, 134672), (152, 84170), (190, 67336), (304, 42085), (361, 35440), (380, 33668), (443, 28880), (722, 17720), (760, 16834), (886, 14440), (1444, 8860), (1520, 8417), (1772, 7220), (1805, 7088), (2215, 5776), (2888, 4430), (3544, 3610)]