72168775

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 107993088

約数和(自身を除く): 35824313

約数列:

[1, 5, 7, 25, 31, 35, 53, 155, 175, 217, 251, 265, 371, 775, 1085, 1255, 1325, 1643, 1757, 1855, 5425, 6275, 7781, 8215, 8785, 9275, 11501, 13303, 38905, 41075, 43925, 54467, 57505, 66515, 93121, 194525, 272335, 287525, 332575, 412393, 465605, 1361675, 2061965, 2328025, 2886751, 10309825, 14433755, 72168775]

約数ペア:

[(1, 72168775), (5, 14433755), (7, 10309825), (25, 2886751), (31, 2328025), (35, 2061965), (53, 1361675), (155, 465605), (175, 412393), (217, 332575), (251, 287525), (265, 272335), (371, 194525), (775, 93121), (1085, 66515), (1255, 57505), (1325, 54467), (1643, 43925), (1757, 41075), (1855, 38905), (5425, 13303), (6275, 11501), (7781, 9275), (8215, 8785)]