128291715

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^2\times {\mathrm{101}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 232731360

約数和(自身を除く): 104439645

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 101, 135, 291, 303, 485, 505, 873, 909, 1455, 1515, 2619, 2727, 4365, 4545, 9409, 9797, 13095, 13635, 28227, 29391, 47045, 48985, 84681, 88173, 141135, 146955, 254043, 264519, 423405, 440865, 950309, 1270215, 1322595, 2850927, 4751545, 8552781, 14254635, 25658343, 42763905, 128291715]

約数ペア:

[(1, 128291715), (3, 42763905), (5, 25658343), (9, 14254635), (15, 8552781), (27, 4751545), (45, 2850927), (97, 1322595), (101, 1270215), (135, 950309), (291, 440865), (303, 423405), (485, 264519), (505, 254043), (873, 146955), (909, 141135), (1455, 88173), (1515, 84681), (2619, 48985), (2727, 47045), (4365, 29391), (4545, 28227), (9409, 13635), (9797, 13095)]