81990412

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1601}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 172247040

約数和(自身を除く): 90256628

約数列:

[1, 2, 4, 7, 14, 28, 31, 59, 62, 118, 124, 217, 236, 413, 434, 826, 868, 1601, 1652, 1829, 3202, 3658, 6404, 7316, 11207, 12803, 22414, 25606, 44828, 49631, 51212, 94459, 99262, 188918, 198524, 347417, 377836, 661213, 694834, 1322426, 1389668, 2644852, 2928229, 5856458, 11712916, 20497603, 40995206, 81990412]

約数ペア:

[(1, 81990412), (2, 40995206), (4, 20497603), (7, 11712916), (14, 5856458), (28, 2928229), (31, 2644852), (59, 1389668), (62, 1322426), (118, 694834), (124, 661213), (217, 377836), (236, 347417), (413, 198524), (434, 188918), (826, 99262), (868, 94459), (1601, 51212), (1652, 49631), (1829, 44828), (3202, 25606), (3658, 22414), (6404, 12803), (7316, 11207)]