39975845

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{853}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 59684352

約数和(自身を除く): 19708507

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 455, 515, 721, 853, 1339, 3605, 4265, 5971, 6695, 9373, 11089, 29855, 46865, 55445, 77623, 87859, 388115, 439295, 615013, 1142167, 3075065, 5710835, 7995169, 39975845]

約数ペア:

[(1, 39975845), (5, 7995169), (7, 5710835), (13, 3075065), (35, 1142167), (65, 615013), (91, 439295), (103, 388115), (455, 87859), (515, 77623), (721, 55445), (853, 46865), (1339, 29855), (3605, 11089), (4265, 9373), (5971, 6695)]