81559725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3637}}^1$

素因数の和:3686

約数の個数: 48

約数和(自身を含む): 151573632

約数和(自身を除く): 70013907

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 975, 1495, 1725, 3637, 4485, 7475, 10911, 18185, 22425, 47281, 54555, 83651, 90925, 141843, 236405, 250953, 272775, 418255, 709215, 1087463, 1182025, 1254765, 2091275, 3262389, 3546075, 5437315, 6273825, 16311945, 27186575, 81559725]

約数ペア:

[(1, 81559725), (3, 27186575), (5, 16311945), (13, 6273825), (15, 5437315), (23, 3546075), (25, 3262389), (39, 2091275), (65, 1254765), (69, 1182025), (75, 1087463), (115, 709215), (195, 418255), (299, 272775), (325, 250953), (345, 236405), (575, 141843), (897, 90925), (975, 83651), (1495, 54555), (1725, 47281), (3637, 22425), (4485, 18185), (7475, 10911)]