80815725

素因数分解:

$3^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 153552672

約数和(自身を除く): 72736947

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 81, 135, 159, 225, 243, 251, 265, 405, 477, 675, 753, 795, 1215, 1255, 1325, 1431, 2025, 2259, 2385, 3765, 3975, 4293, 6075, 6275, 6777, 7155, 11295, 11925, 12879, 13303, 18825, 20331, 21465, 33885, 35775, 39909, 56475, 60993, 64395, 66515, 101655, 107325, 119727, 169425, 199545, 304965, 321975, 332575, 359181, 508275, 598635, 997725, 1077543, 1524825, 1795905, 2993175, 3232629, 5387715, 8979525, 16163145, 26938575, 80815725]

約数ペア:

[(1, 80815725), (3, 26938575), (5, 16163145), (9, 8979525), (15, 5387715), (25, 3232629), (27, 2993175), (45, 1795905), (53, 1524825), (75, 1077543), (81, 997725), (135, 598635), (159, 508275), (225, 359181), (243, 332575), (251, 321975), (265, 304965), (405, 199545), (477, 169425), (675, 119727), (753, 107325), (795, 101655), (1215, 66515), (1255, 64395), (1325, 60993), (1431, 56475), (2025, 39909), (2259, 35775), (2385, 33885), (3765, 21465), (3975, 20331), (4293, 18825), (6075, 13303), (6275, 12879), (6777, 11925), (7155, 11295)]