12505215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{541}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 21229056

約数和(自身を除く): 8723841

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 541, 1005, 1541, 1623, 2705, 4623, 7705, 8115, 12443, 23115, 36247, 37329, 62215, 108741, 181235, 186645, 543705, 833681, 2501043, 4168405, 12505215]

約数ペア:

[(1, 12505215), (3, 4168405), (5, 2501043), (15, 833681), (23, 543705), (67, 186645), (69, 181235), (115, 108741), (201, 62215), (335, 37329), (345, 36247), (541, 23115), (1005, 12443), (1541, 8115), (1623, 7705), (2705, 4623)]