25187445

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 46612800

約数和(自身を除く): 21425355

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 89, 95, 171, 267, 285, 331, 445, 801, 855, 993, 1335, 1655, 1691, 2979, 4005, 4965, 5073, 6289, 8455, 14895, 15219, 18867, 25365, 29459, 31445, 56601, 76095, 88377, 94335, 147295, 265131, 283005, 441885, 559721, 1325655, 1679163, 2798605, 5037489, 8395815, 25187445]

約数ペア:

[(1, 25187445), (3, 8395815), (5, 5037489), (9, 2798605), (15, 1679163), (19, 1325655), (45, 559721), (57, 441885), (89, 283005), (95, 265131), (171, 147295), (267, 94335), (285, 88377), (331, 76095), (445, 56601), (801, 31445), (855, 29459), (993, 25365), (1335, 18867), (1655, 15219), (1691, 14895), (2979, 8455), (4005, 6289), (4965, 5073)]