12641355

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 23063040

約数和(自身を除く): 10421685

約数列:

[1, 3, 5, 9, 15, 43, 45, 47, 129, 139, 141, 215, 235, 387, 417, 423, 645, 695, 705, 1251, 1935, 2021, 2085, 2115, 5977, 6063, 6255, 6533, 10105, 17931, 18189, 19599, 29885, 30315, 32665, 53793, 58797, 89655, 90945, 97995, 268965, 280919, 293985, 842757, 1404595, 2528271, 4213785, 12641355]

約数ペア:

[(1, 12641355), (3, 4213785), (5, 2528271), (9, 1404595), (15, 842757), (43, 293985), (45, 280919), (47, 268965), (129, 97995), (139, 90945), (141, 89655), (215, 58797), (235, 53793), (387, 32665), (417, 30315), (423, 29885), (645, 19599), (695, 18189), (705, 17931), (1251, 10105), (1935, 6533), (2021, 6255), (2085, 6063), (2115, 5977)]