18780328

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2083}}^1$

素因数の和:2126

約数の個数: 48

約数和(自身を含む): 42763680

約数和(自身を除く): 23983352

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 2083, 2254, 4166, 4508, 8332, 9016, 14581, 16664, 29162, 47909, 58324, 95818, 102067, 116648, 191636, 204134, 335363, 383272, 408268, 670726, 816536, 1341452, 2347541, 2682904, 4695082, 9390164, 18780328]

約数ペア:

[(1, 18780328), (2, 9390164), (4, 4695082), (7, 2682904), (8, 2347541), (14, 1341452), (23, 816536), (28, 670726), (46, 408268), (49, 383272), (56, 335363), (92, 204134), (98, 191636), (161, 116648), (184, 102067), (196, 95818), (322, 58324), (392, 47909), (644, 29162), (1127, 16664), (1288, 14581), (2083, 9016), (2254, 8332), (4166, 4508)]