71921450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 139645080

約数和(自身を除く): 67723630

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 193, 257, 290, 386, 514, 725, 965, 1285, 1450, 1930, 2570, 4825, 5597, 6425, 7453, 9650, 11194, 12850, 14906, 27985, 37265, 49601, 55970, 74530, 99202, 139925, 186325, 248005, 279850, 372650, 496010, 1240025, 1438429, 2480050, 2876858, 7192145, 14384290, 35960725, 71921450]

約数ペア:

[(1, 71921450), (2, 35960725), (5, 14384290), (10, 7192145), (25, 2876858), (29, 2480050), (50, 1438429), (58, 1240025), (145, 496010), (193, 372650), (257, 279850), (290, 248005), (386, 186325), (514, 139925), (725, 99202), (965, 74530), (1285, 55970), (1450, 49601), (1930, 37265), (2570, 27985), (4825, 14906), (5597, 12850), (6425, 11194), (7453, 9650)]