80209025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 112492800

約数和(自身を除く): 32283775

約数列:

[1, 5, 13, 25, 47, 59, 65, 89, 235, 295, 325, 445, 611, 767, 1157, 1175, 1475, 2225, 2773, 3055, 3835, 4183, 5251, 5785, 13865, 15275, 19175, 20915, 26255, 28925, 36049, 54379, 68263, 69325, 104575, 131275, 180245, 246797, 271895, 341315, 901225, 1233985, 1359475, 1706575, 3208361, 6169925, 16041805, 80209025]

約数ペア:

[(1, 80209025), (5, 16041805), (13, 6169925), (25, 3208361), (47, 1706575), (59, 1359475), (65, 1233985), (89, 901225), (235, 341315), (295, 271895), (325, 246797), (445, 180245), (611, 131275), (767, 104575), (1157, 69325), (1175, 68263), (1475, 54379), (2225, 36049), (2773, 28925), (3055, 26255), (3835, 20915), (4183, 19175), (5251, 15275), (5785, 13865)]