81429140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2927}}^1$

素因数の和:3056

約数の個数: 48

約数和(自身を含む): 185939712

約数和(自身を除く): 104510572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1070, 1391, 2140, 2782, 2927, 5564, 5854, 6955, 11708, 13910, 14635, 27820, 29270, 38051, 58540, 76102, 152204, 190255, 313189, 380510, 626378, 761020, 1252756, 1565945, 3131890, 4071457, 6263780, 8142914, 16285828, 20357285, 40714570, 81429140]

約数ペア:

[(1, 81429140), (2, 40714570), (4, 20357285), (5, 16285828), (10, 8142914), (13, 6263780), (20, 4071457), (26, 3131890), (52, 1565945), (65, 1252756), (107, 761020), (130, 626378), (214, 380510), (260, 313189), (428, 190255), (535, 152204), (1070, 76102), (1391, 58540), (2140, 38051), (2782, 29270), (2927, 27820), (5564, 14635), (5854, 13910), (6955, 11708)]