197311720

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{27253}}^1$

素因数の和:27445

約数の個数: 32

約数和(自身を含む): 446420520

約数和(自身を除く): 249108800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 27253, 54506, 109012, 136265, 218024, 272530, 545060, 1090120, 4932793, 9865586, 19731172, 24663965, 39462344, 49327930, 98655860, 197311720]

約数ペア:

[(1, 197311720), (2, 98655860), (4, 49327930), (5, 39462344), (8, 24663965), (10, 19731172), (20, 9865586), (40, 4932793), (181, 1090120), (362, 545060), (724, 272530), (905, 218024), (1448, 136265), (1810, 109012), (3620, 54506), (7240, 27253)]