15878395

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 23189760

約数和(自身を除く): 7311365

約数列:

[1, 5, 13, 19, 23, 43, 65, 95, 115, 169, 215, 247, 299, 437, 559, 817, 845, 989, 1235, 1495, 2185, 2795, 3211, 3887, 4085, 4945, 5681, 7267, 10621, 12857, 16055, 18791, 19435, 28405, 36335, 53105, 64285, 73853, 93955, 138073, 167141, 244283, 369265, 690365, 835705, 1221415, 3175679, 15878395]

約数ペア:

[(1, 15878395), (5, 3175679), (13, 1221415), (19, 835705), (23, 690365), (43, 369265), (65, 244283), (95, 167141), (115, 138073), (169, 93955), (215, 73853), (247, 64285), (299, 53105), (437, 36335), (559, 28405), (817, 19435), (845, 18791), (989, 16055), (1235, 12857), (1495, 10621), (2185, 7267), (2795, 5681), (3211, 4945), (3887, 4085)]