20357576

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22220344

約数列:

[1, 2, 4, 8, 23, 31, 43, 46, 62, 83, 86, 92, 124, 166, 172, 184, 248, 332, 344, 664, 713, 989, 1333, 1426, 1909, 1978, 2573, 2666, 2852, 3569, 3818, 3956, 5146, 5332, 5704, 7138, 7636, 7912, 10292, 10664, 14276, 15272, 20584, 28552, 30659, 59179, 61318, 82087, 110639, 118358, 122636, 164174, 221278, 236716, 245272, 328348, 442556, 473432, 656696, 885112, 2544697, 5089394, 10178788, 20357576]

約数ペア:

[(1, 20357576), (2, 10178788), (4, 5089394), (8, 2544697), (23, 885112), (31, 656696), (43, 473432), (46, 442556), (62, 328348), (83, 245272), (86, 236716), (92, 221278), (124, 164174), (166, 122636), (172, 118358), (184, 110639), (248, 82087), (332, 61318), (344, 59179), (664, 30659), (713, 28552), (989, 20584), (1333, 15272), (1426, 14276), (1909, 10664), (1978, 10292), (2573, 7912), (2666, 7636), (2852, 7138), (3569, 5704), (3818, 5332), (3956, 5146)]