18897440

素因数分解:

$2^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1423}}^1$

素因数の和:1521

約数の個数: 48

約数和(自身を含む): 45214848

約数和(自身を除く): 26317408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 83, 160, 166, 332, 415, 664, 830, 1328, 1423, 1660, 2656, 2846, 3320, 5692, 6640, 7115, 11384, 13280, 14230, 22768, 28460, 45536, 56920, 113840, 118109, 227680, 236218, 472436, 590545, 944872, 1181090, 1889744, 2362180, 3779488, 4724360, 9448720, 18897440]

約数ペア:

[(1, 18897440), (2, 9448720), (4, 4724360), (5, 3779488), (8, 2362180), (10, 1889744), (16, 1181090), (20, 944872), (32, 590545), (40, 472436), (80, 236218), (83, 227680), (160, 118109), (166, 113840), (332, 56920), (415, 45536), (664, 28460), (830, 22768), (1328, 14230), (1423, 13280), (1660, 11384), (2656, 7115), (2846, 6640), (3320, 5692)]